15 
Since the last Report, Mr. Locy’s paper, ‘‘ Observations on 
the Development of Agelena nevia,’ has been published in the 
Bulletin; and Dr. Mark has reviewed the subject of ‘‘ Simple 
Eyes in Arthropods,” in a paper which will soon appear in the 
same publication. 
Natural History 7, which has generally been given at the Museum, 
was this year transferred to the new Botanical Laboratory in Har- 
vard Hall. In the special course of Cryptogamic Botany, in charge 
of Professor Farlow, (Nat. Hist. 12,) there were four students, — 
two candidates for S. B., one special Scientific student, and one 
candidate for Ph.D. Two of the students have prepared papers, 
which are already in press; one has been at work on two papers, 
one of which will soon go to press, while the other will be pre- 
sented as a doctor’s thesis; and one student has issued in book 
form a description of our common genera of Cryptogams, for the 
use of students. During the year the collections of Dr. Farlow 
have been consulted by several specialists from other colleges, 
some of whom remained for several weeks. The amount of in- 
struction given during the year was greater than usual; and, in 
fact,so much of the time of the instructor was necessarily given 
to students and persons seeking advice, and to the mechanical 
duties connected with the care and increase of large collections 
that the publication of papers already much advanced has been 
seriously delayed. Practically, original work has been limited to 
the vacations, — the only time when the Cryptogamic Laboratory 
has been free from students and work could be carried on by the 
instructor without interruption. A paper on Arctic Alge was 
issued during the year. 
