Men who Aided in Developing the Science of Geology. 115 



E. B. Andrews died at his home in Lancaster, Ohio, on the 21st day 

 of. August, 1880, in his sixtieth year. He was engaged for many 

 years in the study of the Coal Measures of Ohio, Virginia and Penn- 

 sylvania, and was an assistant Geologist on the Ohio Survey, where 

 the result of his study may be found. The Reports for 1869 and 1870 } 

 and the final volumes of the Survey, present the greater part of his 

 work. He described a few fossil plants, but seems not to have per- 

 formed any other palseontological labor. He contributed to the Amer- 

 ican Journal of Science and Arts, and to other scientific journals, and 

 shortly before his death became the author of a school text-book on 

 geology. 



Charles T. Jackson was born June 21, 1805, and died August 29, 

 1880. He was State geologist of Maine, and made three annual re- 

 ports from 1837 to 1839, and a report on the Geology of the Public 

 Lands of Maine and Massachusetts in 1838. Later, he did much for 

 the elucidation of the geology of the New England States, and was 

 distinguished as an eminent mineralogist. 



In addition, I may mention from among the Europeans, John J. 

 Bigsby, who wrote upon the geology and palaeontology of the Lake 

 Huron region as early as 1823, and published several other papers 

 before the appearance of his Thesaurus Siluricus, in 1868, and The- 

 saurus Devonico-Carboniferus in 1878. C. A. Lesdeur described three 

 species of Devonian Corals from America in 1820. Edouard Poulle- 

 tier de Verneuil attempted to parallelize the , palaeozoic rocks ot 

 Europe and America in 1S46, and described two species of fossils. 

 Alcide D'Orbigny described a few American fossils, from 1850 to 

 1852, in his Prodrome de Paleontologie Stratigraphique Universelle des 

 Animeux Mollusques et Ray on pes. H. G. Bronn described some 

 American fossils in 1835, in Letlmea Geognostica, oder Abbildung and 



Beschreibung der fur die Gebirgslbrmationen bezeichnendsten Ver- 

 steinerungen. Edward Forbes described a few fossils in 1855 in the 

 Quarterly Journal of the Geological Society, which were collected in 

 the Cretaceous rocks of New Jersey. William Lonsdale, in 1845, 

 described in the same journal some Cretaceous and Tertiary fossils 

 from America. Hardouin Michelin described a lew American corals 

 in his Iconographie Zoophytologique, published in 1840-47. Charles 

 Stokes described a few fossil Cephalopods from the palaeozoic rocks of 

 Canada in the Proceedings and Transactions of the Geological Society 

 of London, in 1838-40. Christian Gottfried Ehrenberg was born at 

 Delizsch, in Prussian Saxony, in 1795. He wrote his great work on 

 Mikrogeologie in 1854-56, and described many infusoria and micro- 

 scropic organisms from the Cretaceous and Tertiary strata of North 

 America. 



