( This work has been selected by scholars as being cultur...)
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
https://www.amazon.com/Text-Book-Medical-Jurisprudence-Toxicology-Leffmann/dp/1377646637?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=1377646637
( This work has been selected by scholars as being cultur...)
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
https://www.amazon.com/Select-Methods-Analysis-Henry-Leffmann/dp/1377720780?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=1377720780
(Excerpt from Elements of Chemistry HE first twenty-eight...)
Excerpt from Elements of Chemistry HE first twenty-eight of the following pages are a revised reprint of the first step IN chemical principles, with the success of which book I have everyhreason to be satis fied, arid this fact must constitute the reason for the republication. With regard to the one hundred and twenty-six pages of descrip tive chemistry, I have no apology to ofier for their publication, nor excuse to make for their character. I am in no manner dis posed to follow the custom, now common among writers of chemical manuals, of apologizing for the publication ofa book or begging the indulgence of critics. I have put this book out up on the world because it pleased me to do so, and the reviewer who sees in it errors, in fact or method, will but do his duty in pointing them out. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
https://www.amazon.com/Elements-Chemistry-Classic-Reprint-Leffmann/dp/1527838978?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=1527838978
(This is a pre-1923 historical reproduction that was curat...)
This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide. This text refers to the Bibliobazaar edition.
https://www.amazon.com/Select-Methods-Analysis-Leffmann-Henry/dp/1113541385?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=1113541385
(Examination of water for sanitary and technic purposes by...)
Examination of water for sanitary and technic purposes by Henry Leffmann. This book is a reproduction of the original book published in 1915 and may have some imperfections such as marks or hand-written notes.
https://www.amazon.com/Examination-water-sanitary-technic-purposes-ebook/dp/B01EQ7UTU8?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=B01EQ7UTU8
(Excerpt from Text-Book of Organic Chemistry This book is...)
Excerpt from Text-Book of Organic Chemistry This book is offered as an aid to the study of organic chemistry in connection with general and professional col lege courses. The difficulty in the preparation of such a' work is to determine what to exclude. We have endeav ored to give consideration to the more important features of the science, especially in its applications. Polarisa tion of light has been treated in some detail on account of the importance of it in the study of molecular structure. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
https://www.amazon.com/Text-Book-Organic-Chemistry-Classic-Reprint/dp/1330578619?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=1330578619
(This work has been selected by scholars as being cultural...)
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
https://www.amazon.com/Compend-Chemistry-Inorganic-Organic-Including/dp/B002IC0XZU?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=B002IC0XZU
( About the Book Science is a systematic enterprise that ...)
About the Book Science is a systematic enterprise that builds knowledge through formulating testable hypothese and predictions about the physical universe. Its earliest roots of science can be traced to Ancient Egypt, India and Mesopotamia in around 3500 to 3000 BC. Scientific fields may be divided into: natural sciences, which examine natural phenomena including biological lifeforms, and social sciences, which analyze human behavior and societies. Both are empirical sciences. Disciplines that may be termed interdisciplinary applied sciences include engineering and medicine. Mathematics, which is formally classified as a science, exhibits similarities and differences to empirical sciences. About us Leopold Classic Library has the goal of making available to readers the classic books that have been out of print for decades. While these books may have occasional imperfections, we consider that only hand checking of every page ensures readable content without poor picture quality, blurred or missing text etc. That's why we: • republish only hand checked books; • that are high quality; • enabling readers to see classic books in original formats; that • are unlikely to have missing or blurred pages. You can search "Leopold Classic Library" in categories of your interest to find other books in our extensive collection. Happy reading!
https://www.amazon.com/Compends-Chemistry-Including-Analysis-Examination/dp/B01FT2QZJI?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=B01FT2QZJI
(Originally published in 1905. This volume from the Cornel...)
Originally published in 1905. This volume from the Cornell University Library's print collections was scanned on an APT BookScan and converted to JPG 2000 format by Kirtas Technologies. All titles scanned cover to cover and pages may include marks notations and other marginalia present in the original volume.
https://www.amazon.com/Outline-Autobiography-Henry-Leffmann-Philadelphia/dp/1112186042?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=1112186042
( This work has been selected by scholars as being cultur...)
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
https://www.amazon.com/Analysis-Milk-Products-Henry-Leffmann/dp/1377565122?SubscriptionId=AKIAJRRWTH346WSPOAFQ&tag=prabook-20&linkCode=sp1&camp=2025&creative=165953&creativeASIN=1377565122
Henry Leffmann was born in Philadelphia, Pennsylvania. His father, Henry Leffmann of Hamburg, Germany, was of Russian Jewish stock; his mother, Sarah Ann Paul of Doylestown, Bucks County, Pennsylvania, was a Hicksite Friend, of Welsh extraction.
He was educated in the public schools, completing the four-year course at the Central High School in Philadelphia but failing to receive the degree because of illness in his last year. He was subsequently (1865) awarded the degree of A. M. (honoris causa). He graduated in medicine from the Jefferson Medical College in 1869, received the degree of Ph. D. from the Wagner Free Institute of Science in 1874, and that of D. D. S. from the Pennsylvania College of Dental Surgery in 1884.
Immediately after graduation from the Jefferson Medical College Leffmann began to teach chemistry at Jefferson Medical College and at Central High School. He also taught toxicology in Jefferson Medical College for several years. Subsequently he became professor of chemistry in the Pennsylvania College of Dental Surgery, and in the Wagner Free Institute of Science. With the last-named institution he was actively connected for a half century.
From 1888 to 1916 he occupied the chair of chemistry at the Woman's Medical College of Pennsylvania, becoming emeritus professor after his retirement from active work. At the time of his death he was lecturer on research in the Philadelphia College of Pharmacy and Science. He was an inspiring teacher, demanding industry, accuracy, and enthusiasm on the part of his students, imbuing them with the love of science and the hatred of sham, hypocrisy, and carelessness in research work. His humor, his personal charm, his encyclopedic memory, and his ability as a raconteur made him a brilliant conversationalist, and he was much in demand as a lecturer on various topics.
His book Elements of Chemistry, issued in 1881, was followed a little later by a Compend of Chemistry (1882), which passed through five editions. Two books written in collaboration with William Beam, The Examination of Water (1889), and Analysis of Milk and Milk Products (1893), have gone through a number of editions; Select Methods in Food Analysis (1901), also in association with Beam, was favorably received and widely used.
As a medical and scientific expert, testifying in courts, Leffmann was unsurpassed, and he was a master in the field of medical and legal jurisprudence. He served as chemist to the coroner of Philadelphia, 1875-1880; chemist to the coroner and the district attorney of Philadelphia, 1885-1897; and in other capacities. He was port physician of Philadelphia from 1884 to 1887, and again in 1891-1892. His delightful book, Under the Yellow Flag (1896), is the story of this phase of his work.
He was a member of many professional and scientific organizations, served as president of the Engineers' Club of Philadelphia for one term, and in 1930 was elected to honorary membership in the Franklin Institute "in recognition of valuable services to science and research, in teaching, as former Port Physician of the City of Philadelphia, and as a discriminating but goodtempered critic. " For many years he was an active member of the Society of Ethical Culture of Philadelphia.
Of special interest were the Sunday evening lectures which he gave from time to time. The first of these was on "Charles Dickens' Solution of the Problem of Poverty, " and some of the others were: "Primitive Man and His Work"; "The Bible and Evolution"; "The Real Thomas Paine. " The last mentioned was published in 1922. Other publications of Leffmann's, outside his professional field, were About Dickens (1908) and The States-Rights Fetish (1913). Death came to him on Christmas Day, in his eighty-fourth year, after a brief illness. Leffmann lived quietly and economically, and his testamentary benefactions emphasize his interest in science. He left generous bequests to the Wagner Free Institute of Science, in which he had established, after the death of his wife, "The Fannie Frank Leffmann Memorial Lectureship" for lectures on scientific subjects and on subjects in American colonial history. He also left trust funds for the Jefferson Medical College and the Philadelphia College of Pharmacy and Science to be used for scientific research.
(Excerpt from Elements of Chemistry HE first twenty-eight...)
(Excerpt from Text-Book of Organic Chemistry This book is...)
( About the Book Science is a systematic enterprise that ...)
( This work has been selected by scholars as being cultur...)
( This work has been selected by scholars as being cultur...)
(This work has been selected by scholars as being cultural...)
( This work has been selected by scholars as being cultur...)
(Examination of water for sanitary and technic purposes by...)
(This is a pre-1923 historical reproduction that was curat...)
(Originally published in 1905. This volume from the Cornel...)
Quotations: "In these days of genetics and eugenics, it is worth while to show that a mongrel may have some merit. "
Member of the Franklin Institute
Member of the Society of Ethical Culture of Philadelphia
Leffmann was a many-sided humanitarian, "tolerant, friendly, familiar with art, music, literature, history, science, religion and ethics. "
On November 29, 1876, Leffmann had married Fannie Frank. They had no children.
