350 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Mr. T. A. Watson’s cordial interest in this work continues un¬ 
abated, and we have additional reasons for being grateful to this 
gentleman for his appreciation of this investigation. Mr. John L. 
Gardner, Jr., has also manifested a special interest and has kindly 
offered to obtain for Professor Crosby all the photographs that may 
be needful for illustration and study. 
The additions to the mineral collection during the past year have 
been more important than usual. These include, first, a series of 
exceptionally attractive and desirable specimens obtained by 
exchange. In this way more than $100 worth of desiderata have 
been added to our collection without any expense to the Society. 
Mr. Gardner has also given us from his private collection a 
valuable series of minerals. 
We were also able to obtain from the Waterston collection a 
number of desirable specimens and more might have been selected 
but for the fact that no localities were given on the labels. 
All the accessions of the year have been incorporated in the 
collection and properly mounted and labeled; and this and the 
geological collection are in good condition. 
The specimens illustrating Part 3 of the Boston Basin geology 
have been added to the permanent series and properly labeled, but 
it is greatly to be regretted that for lack of room this material and 
the maps and sections supplementing the collection cannot be effec¬ 
tively exhibited. Professor Crosby collected in Colorado and Mis¬ 
souri an exceptionally complete series of the ores and minerals of the 
Joplin zinc district, and all of these that were desirable for exhibition 
were donated by him to the Society. 
Dynamical Zoology. 
Miss Bryant has picked out a series of the different varieties of 
pigeons to illustrate Darwin’s observations upon the descent of 
these from the rock pigeon, Columba lima, and more or less work 
has been done in other directions. 
Synoptic Zoology. 
% 
Mrs. Sheldon still continues her work in this department, of 
which a general notice was given in the last annual report. She 
