2/4 J^ftf^ Anietica)i Geologist. April, isaa 
Henry Alleyne Nicholson, since 1882 Rej^ius profes- 
sor of natural historx' in the University of Aberdeen, died on 
Jan. 19, 1899. He was born Sept. ii, 1844, in Penrith. 
Early in his career he studied medicine and in 1871 left Eng- 
land for Canada to assume the chair of natural history in the 
Universit)' of Toronto. While here he carried on investiga- 
tions for the Ontario government on the fauna dredged up 
from lake Ontario, and he also described the fossil corals 
and polyzoans of Ohio, the report being published in the 
second volume of the "Paheontolog\' of Ohio." During his 
residence in Canada the first edition of his now noted "Man- 
ual of Palaiontologx" was issued. In 1874 Prof. Nicholson 
returned to Great Britain. His chief interest la}' along the 
lines of field geology and invertebrate paleontolog}', but it 
is in the latter line that his chief work was done, he being 
one of the noted paleontologists of this century. His abilit}- 
as a teacher and lecturer was preeminent, his sympathy with 
fellow workers was marked, and his capacity for work was 
enormous. Prof. J. G. Hinde has given a sketch of Prof. 
Nicholson's life, with a portrait, in the current number 
(March) of the "GeoKjgical Magazine." 
M.^j. Jed Hotchkfss, of Staunton, Va., died Jan. 17, 
aged 70. He was the autho." of a geological work entitled 
"The Virginias," which consists essential!}' of a republication 
of some of the older official reports of Messrs. Rogers on 
the geology of that state. 
Prof. (Jliver Makcv. long professor of geolog}' at 
Northwestern University, Evanston, and for many years 
dean, died at his home March 19, aged 79. 
Prof. O. C. Marsh, Yale University, died of pneumonia 
at New Haven, March i8, aged 68. 
