Background
Isaac Lea, of Quaker stock, the fifth son of James and Elizabeth (Gibson) Lea, was born at Wilmington, Delaware, United States, to which place his great-great-grandfather, John Lea, had come from Gloucestershire, England, in 1699.
(Excerpt from A Synopsis of the Family Unionidæ These tab...)
Excerpt from A Synopsis of the Family Unionidæ These tables were originally made for my own use. Subsequently I was induced to print them, and they have now expanded to a large volume. With all the care which has been bestowed on them, I do not present them as a perfect and complete work, and I trust that any omissions and errors may be pointed out to me. 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.
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(Check Lists of the Shells of North America is an unchange...)
Check Lists of the Shells of North America is an unchanged, high-quality reprint of the original edition of 1860. Hansebooks is editor of the literature on different topic areas such as research and science, travel and expeditions, cooking and nutrition, medicine, and other genres. As a publisher we focus on the preservation of historical literature. Many works of historical writers and scientists are available today as antiques only. Hansebooks newly publishes these books and contributes to the preservation of literature which has become rare and historical knowledge for the future.
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( This is a reproduction of a book published before 1923....)
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ On A Fossil Saurian Of The New Red Sandstone Formation Of Pennsylvania With Some Account Of That Formation Isaac Lea Merrihew & Thompson, 1852 Nature; Fossils; Nature / Fossils; Science / Paleontology
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(Excerpt from Contributions to Geology The small contribu...)
Excerpt from Contributions to Geology The small contributions at the end of this volume are added, in the/hope of their proving to be of some interest, the specimens having been for some years in my possess ion, without a favourable opportunity before presenting itself for their publication. 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.
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(This is a reproduction of a book published before 1923. T...)
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++
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(Title: Notes on Microscopic Crystals included in some min...)
Title: Notes on Microscopic Crystals included in some minerals, etc. (Extracted from the Proceedings of the Academy of Natural Sciences of Philadelphia.). Publisher: British Library, Historical Print Editions The British Library is the national library of the United Kingdom. It is one of the world's largest research libraries holding over 150 million items in all known languages and formats: books, journals, newspapers, sound recordings, patents, maps, stamps, prints and much more. Its collections include around 14 million books, along with substantial additional collections of manuscripts and historical items dating back as far as 300 BC. The GENERAL HISTORICAL collection includes books from the British Library digitised by Microsoft. This varied collection includes material that gives readers a 19th century view of the world. Topics include health, education, economics, agriculture, environment, technology, culture, politics, labour and industry, mining, penal policy, and social order. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to insure edition identification: ++++ British Library Lea, Isaac; 1869 7 p. ; 8º. 7108.b.1.(3.)
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(Excerpt from Observations on the Genus Union: Together Wi...)
Excerpt from Observations on the Genus Union: Together With Descriptions of New Genera and Species in the Families Naiades, Conchæ, Colimacea, Lymnæana, Melaniana and Peristomiana; Consisting of Four Memoirs Read Before the American Philosophical Society From 1827 to 1834 Description of Six New Species of the Genus Unio, embracing the Anatomy of the Ovi duct of one of them, together with some Anatomical Observations on the Genus. Description of a New Genus of the Family of Naiades, including Eight Species, Four of which are New; also the Description of Eleven New Species of the Genus Unio from the Rivers of the United States: with Observations on some of the Characters of the Naiades. Observations on the Naiades, and Descriptions of New Species of that and other Families. 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.
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(Observations on the genus Unio together with descriptions...)
Observations on the genus Unio together with descriptions of new species in the families Unionidae, Colimacea and Melanina. Volume V This book, "Observations on the genus Unio Volume V", by Isaac Lea, is a replication of a book originally published before 1840. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.
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(This is a reproduction of a book published before 1923. T...)
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
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Isaac Lea, of Quaker stock, the fifth son of James and Elizabeth (Gibson) Lea, was born at Wilmington, Delaware, United States, to which place his great-great-grandfather, John Lea, had come from Gloucestershire, England, in 1699.
When Isaac was fifteen the family moved to Philadelphia, and he entered the wholesale and importing establishment of his eldest brother. About this time he formed a friendship with Lardner Vanuxem, with whom he made jaunts about Philadelphia, collecting minerals and rocks. Science at that day had not progressed very far, and it was difficult for the boys to obtain information about the specimens they gathered; although later they had access to a collection of minerals owned by Dr. Adam Seybert, then the only collection of its kind in the city.
They were both early members (1815) of the Academy of Natural Sciences of Philadelphia. In 1814 they joined a volunteer rifle company and offered service against the British, then in possession of Washington. Although the company was not called into action, the enlistment cost Lea his birthright in the Society of Friends. Later Lea became a member of the firm of M. Carey & Sons, the most extensive publishing house of its day in the United States. He remained with this firm and its successors until his retirement in 1851.
Lea's first scientific article was "An Account of the Minerals at Present Known to Exist in the Vicinity of Philadelphia"; his second article was a "Notice of a Singular Impression in Sand-stone. " He continued writing until 1876, his work covering a period of fifty-eight years.
His style was plain but fluent; his bibliography includes 279 titles; and his papers deal with a wide range of subjects: mineralogy, hibernation, the Northwest Passage, halos with parhelia, geology, fossils, land, fresh-water, and marine Mollusca. After 1827 he gave most of his attention to studies of the fresh-water mollusks. Most of his papers appeared in the Proceedings or Transactions of the American Philosophical Society, or in the Proceedings or Journal of the Academy of Natural Sciences of Philadelphia. From time to time they were republished in his Observations on the Genus Unio, issued between 1827 and 1874 in thirteen quarto volumes, with many lithographic plates illustrating all the species described.
He described more than 1, 800 species of mollusks, recent and fossil. Of pearly fresh-water mussels, the group for which he is most famous, he described 901 recent and ten fossil species. Of many he described not only the shell but also the soft parts and the glochidium (the minute embryonic shells in the gills of the mother). Among other mollusks his interest centered chiefly in fresh-water snails belonging to the genera Melania, Goniobasis, Pleurocera, Anculosa, and others of that group. He described a few miscellaneous freshwater species, and about seventy-five terrestrial species. As his studies of the Mollusca progressed he received specimens from correspondents in all parts of the world, who sought his aid in classifying them. Thus he acquired many species which he described as new, the types of which in most cases were retained for his collection. He received also many species already known which helped to build up his valuable series. His collections were bequeathed to the United States National Museum.
Self-confident, of strong will, successful in business, the leading authority on the freshwater mussels, he did not take kindly to the work of Conrad and Rafinesque in this line, and his criticism of their work was sometimes very severe. In his eighty-fifth year he prepared and published Catalogue of the Published Works of Isaac Lea, LL. D. from 1817 to 1876 (1876).
Honors bestowed upon him included the presidency of the American Association for the Advancement of Science (1860); presidency of the Academy of Natural Sciences of Philadelphia (1858 - 1863); vice-presidency of the American Philosophical Society; membership or honorary membership in numerous learned societies in America and abroad. In 1832 and again in 1853 he spent several months touring Europe and was an honored guest of many of the scientists of England, France, Germany, and other countries.
Under the leadership of Isaac Lea and Henry Charles Carey, his brother-in-law, the publishing house M. Carey & Sons became one of the most successful in America, publishing among others The Encyclopedia Americana, a dictionary of German lexicon, as well as American editions of the works of Walter Scott and James Fenimore Cooper. Isaac Lea was also a recognized authority in the field of the fresh-water mollusks. He was known for his vast collection of fossil fresh-water shells.
(Excerpt from Observations on the Genus Union: Together Wi...)
(Excerpt from Contributions to Geology The small contribu...)
(Observations on the genus Unio together with descriptions...)
(Check Lists of the Shells of North America is an unchange...)
(Excerpt from A Synopsis of the Family Unionidæ These tab...)
(This book an EXACT reproduction of the original book publ...)
(Title: Notes on Microscopic Crystals included in some min...)
( This is a reproduction of a book published before 1923....)
(This is a reproduction of a book published before 1923. T...)
(This is a reproduction of a book published before 1923. T...)
Members of the Academy of Natural Sciences of Philadelphia
In 1821 Lea married Frances Anne Carey, daughter of Mathew Carey. She died after a happy married life of fifty-two years, leaving two sons, Mathew Carey and Henry Charles Lea, and one daughter.