NATURAL SCIENCES OF PHILADELPHIA. 
431 
1889.] 
during the year. The systematic cataloguing of the entire collec¬ 
tion of birds is now fairly under way, and with such progress as has 
been made, it is believed that the work will be completed be¬ 
fore many years. The publication of special annotated lists, ac¬ 
companying the identifications, is an important feature of Mr. 
Stone’s work. 
To my special assistant, Mr. J. E. Ives, I am indebted for a large 
amount of labor in connection with the determination and classifica¬ 
tion of new and old material in the possession of the Academy, prin¬ 
cipally among the alcoholics. The refuse of accumulated material 
is thus being gradually disposed of, and with the additional space 
which is assured to the Academy, the full collection will shortly be 
in a condition to be systematically placed. Dr. G. Baur, of New 
Haven, has rendered valuable assistance through his critical studies 
of the Academy’s Testudinata, which were placed in his hands for 
revision and cataloguing. This collection, which is rich in types and 
rare species, numbers 429 specimens. These have all been redeter¬ 
mined and labeled. 
The elaboration of the large collection of material brought from 
the Bermuda Islands in the summer of 1888 by the Curator-in- 
Charge and a class of students from the Academy has been com¬ 
pleted, except as to one or two of the lower groups of organisms 
(sponges). This material has furnished subject for several impor¬ 
tant papers by different specialists, which have been published in 
part in the Proceedings of the Academy and in part in an inde¬ 
pendent publication on the physical history and zoology of the Ber¬ 
mudas by the undersigned. The greater part of the material col¬ 
lected proved new to the Academy’s collections, while much of it 
was new to science. The success of, and very light expense attend¬ 
ing, the expedition show how much may be accomplished even with 
little effort in zoogeographical research, and encourages the hope 
that researches of a similar nature may hereafter be systematically 
conducted under the auspices of the Academy. 
The losses to the Academy’s collection during the year have been 
insignificant. Less than a dozen specimens have been removed from 
the museum as having passed beyond the period of their usefulness. 
Specimens were loaned for study during the year to Prof. Alfred 
Newton, of Cambridge, England; to Prof. O. C. Marsh and Dr. G. 
Baur, of New Haven ; to Dr. W. B. Clark, of Batimore ; to Dr. 
