99 
short tour in Europe in which his eyes were delighted by the 
mountain Flora of Switzerland, and during which he made con- 
siderable collections, enabled him to lay a foundation for that 
extensive Herbarium which was to be his chief life-work. After 
his removal to Camden, his close proximity to the rich and peculiar 
Flora of the “ Jersey Pines” opened to him a new and most fasci- 
nating field, in the study of which he profited by the companion- 
ship and accurate local knowledge. of the lamented Charles F. 
Parker. From that time onward, with most assiduous effort, most 
untiring industry, and with large pecuniary outlay, he devoted 
himself to the increase and perfection of an Herbarium which has 
few, if any rivals among the private collections in the land. 
He published in November, 1879, in the American Naturalist, 
a list of plants collected on an excursion of some members of the 
American Association for the Advancement of Science to the 
Vicinity of Pike’s Pcak in 1878, with critical notes on various 
species. In 1880 he read before the West New Jersey Surveyors’ 
Association a paper entitled «Notes Upon the Bartram Oak” 
(Quercus heterophylla), with a summary of the literature concerning 
that mooted form. He published in the proceedings of the Phila- 
delphia Academy for 1880, a short paper on “Sexual Variations 
in Castanea Americana.” He also prepared a most valuable “list of 
the marine algz hitherto observed on the coasts of New Jersey 
and Staten Island,” which was published in the first volume of the 
Memoirs of the Torrey Club. For the proceedings of the Phila- 
delphia Academy for November, 1883, he furnished a very just 
and feeling biographical sketch of his friend Charles F. Parker, 
who had died the previous September. 
Although botany may be said to have been Mr. Martindale's 
chief love among the sciences, and that to which he had mainly 
devoted himself, it was by no means his exclusive hobby. Ento- 
mology received a large share of his attention, and as early as 
1863 he was elected a corresponding member of the American 
Entomological Society. During his last years he devoted himself 
largely to the study of Lepidoptera, and had made a collection - 
which experts in that department have pronounced as very nearly 
the finest in America. He was much interested in meteorology, oe 
and was for a time one of the observers for the Smithsonian In- 
