514 
PROCEEDINGS OP THE ACADEMY OP 
Belisario; and a collection of bows and arrows, from one of the 
Pacific Isles, presented by Dr. Wm. H. Jones, U. S. N. 
Respectfully submitted by 
Joseph Leidy, 
Chairman of the Curators. 
REPORT OF RECORDER OF BIOLOGICAL AND 
MICROSCOPICAL SECTION, 1875. 
In presenting to this Section the annual Report of the Recorder, 
I am gratified to be able to make it a mere record of scientific 
research actually accomplished; and believe we have ample cause 
for mutual felicitation in the fact, that no single meeting through¬ 
out the year has passed without its written or oral communica¬ 
tion, illustrated in every instance save one by specimens of 
microscopic work. 
At the first meeting in 1875, Dr. J. G. Hunt made a very inter¬ 
esting communication upon the subject of Amplifiers for the 
microscope, giving a history of the apparatus, and demonstrating 
the mode of employment and special advantages. At the Febru¬ 
ary meeting, Dr. J. C. Morris read his elaborate report upon 
2 V and objectives, full abstracts of which have been since re¬ 
printed in the “Cincinnati Medical News,” and in the “London 
Monthly Microscopical Journal.” In March an instructive article 
on “The misinterpretation of appearances under the microscope,” 
by Mr. Charles Stodder, of Boston, Mass., a correspondent of 
the Section, was read and afterwards appeared in the columns 
of the “Phila. Medical Times.” At the next meeting, Dr. Carl 
Seiler produced an important paper on the “ Photographic en¬ 
largement of microscopic objects,” illustrated by numerous pho¬ 
tographs taken with an ingenious camera of his own construction, 
which he also displayed. In May, an exhaustive article on the 
“ Physiological action of hemlock and its alkaloids,” was pre¬ 
sented by Dr. H. C. Wood, for B. F. Lautenbach, M.D.; and Dr. 
J. G. Hunt exhibited some of his exquisite preparations, of in¬ 
jected intestinal villi of the rabbit, and Pacinian bodies from the 
mesentery of the cat, giving minute directions for following his 
method of manipulation. At the first meeting after the summer 
vacation, Dr. Hunt showed some sections from the branch of a 
pear tree affected with “black rot” or “fire blight” which gave 
