726 The American Naturalist. [August, 
in 1845 returned to Vienna as professor of anatomy at the university 
there. In 1857 he became a member of the Imperial Academy of 
Sciences. He was one of Austria’s most distinguished anatomists and 
the author of two works which have come to be accepted as standard 
authorities throughont the world—* The Manual of Physiological and 
Practical Anatomy” and “The Manual of Topographical Anatomy 
atd Its Applications.” Dr. Hyrtl, being very skilful in the art of 
preparing anatomical specimens, established in Vienna an anatomical 
museum, of which he published a most interesting description. He 
had enriched most of the anatomical collections of Europe with models 
of rare perfection. One of his collections, that of the skeletons of 
fishes, was purchased by Prof. Cope of Philadelphia. He was for a 
time director of the Ecole Superieure, resigning the position in 1874. 
Dr. George Huntington Williams, professor of geology at Johns 
Hopkins University, whose death occurred in July, founded the de- 
partment of mineralogy and geology at the Johns Hopkins in 1888, 
and since that time had acquired a wide reputation among scientific 
men for his intimate knowledge of the geology and topography of 
Maryland. He was also a collaborator of the United States Geologi- 
eal Survey, and prepared a number of special reports for the survey 
during his summer vacation. He was born Jan. 28, 1856, at Utica, 
N. Y. His connection with the Johns Hopkins dates from March, 
1883, when he entered the university as a fellow by courtesy. In 
October of that year he was added to the faculty as an associate in 
mineralogy. In 1885 he was made an associate professor, and iu 1892 
was chosen to the chair of inorganic geology. His writings include 
nearly a hundred geological and mineralógical papers in scientific 
journals, more than one-half of which treat of the geology of Mary- 
land, especially in the vicinity of Baltimore. He wrote “The Ele- 
ments of Crystallography,” and had been engaged for a number of 
years in preparing a new geological map of Maryland for the United 
States Geological Survey. He was one of the judges of the mines and 
mining exhibit at the World’s Fair, an editor of the Standard Diction- 
ary, recently issued, and of Johnson’s Cyclopedia, now in press. He 
was a member of the National Academy of Sciences, a vice-president 
of the Geological Society of America, and a member of the American 
Institute of Mining Engineers, the Washington Geological Society and 
other scientific bodies. 
Johannes Nill, founder of the Stuttgart Zoological Garden. died in 
that city May 20, 1894; hisson, Adolf Nill, is his suecessor in the 
management of the garden. 
