IS93-] 
"[29 [Annual Meeting. 
value to the majority of the visitors. Unless these two objects 
could be combined, the opening of the Museum during tlie coldest 
months of the year would probably not have very beneficial results 
and might serve to make it a place of refuge for a certain number 
of homeless idlers. 
The Society owes the existence of this department to the gen- 
erosity of a member who hopes with the Curator that the success 
of the guide's efforts in the Museum may lead to the inauguration 
of an organized effort to raise the funds necessary to acomplish 
these objects. 
Dynamical Zooi-ogy. 
The Curator spent all of the summer itionths and a consid- 
erable part of the winter in redescribing the species and working- 
over the Gulick collection of shells. In spite of the large amount 
of time ah-eady expended in this direction, it will probably take 
several years more before the shells can be mounted upon the relief 
map of the Island of Oahu. In consequence of redescribing 
every variety and every species of the shells and verifying all ttie 
details of their affinities, this work has grown to tlie dimensions 
of an origmal research involving the writing of a memoir on the 
Achatinellinae. 
The Curator has also pre|):ire<l a large plate to illustrate the 
evolution of the Arietidae, and Miss Martin has drawn the figures 
for this plate, l)nt the method of mounting has not yet been settled 
upon . 
The sluw progress of this department is owing to the need of 
constructing original examples of this kind and the costliness of 
the specimens desired, but more than all else to the difficulties 
attending the collection of specimens and the construction of the 
reduced models of larger animals. 
Geology. 
Tlie Guide to dynamical geology and petrography, which went 
to press last April, was finally issued in October ; and during the 
year the labeling and final arrangement of the collections to which it 
relates have been completed. 
PKOCEEDIXGS B. S. X. H. VOL. XXVI. 9 OCT. 1893. 
