10 
REPORT OF THE 
The collection of rocks has been steadily accummulating for 
a considerable time, and it now becomes a question of some 
consequence as to whether a selection from this collection might 
not be exhibited in some suitable place. 
Petrology has come to the front so much of late years, that 
a good rock collection seems an almost indispensable adjunct of 
every Natural History Museum. 
Comparative Anatomy. —The Honorary Curator of this 
Department reports that the collection under his care is in 
good order. The Crocodile’s skin presented last year by 
Eowley C. Falkner, Esq., has been carefully stutfed. The most 
interesting addition that has been made to the collection during 
the past year is the skull of a rabbit, exhibiting a curious and 
abnormal growth of the incisors. 
British Ornithology. —The work of renovating the 
specimens in the Pudston collection has steadily progressed 
during the year, and several specimens have been added which 
are of special interest as Yorkshire killed birds. Among them 
may be mentioned the Little Gull (Larus Mimitus) and the 
Manx Shearw^ater (Puffinus Anglorum) ^ both shot on the coast 
near Scarbro’ during the Autumn, and a case containing a 
pair of Hobbys [Fako suhhiiteo), both of which were captured 
in 1876, in the neighbourhood of Doncaster. 
A capital series of British Birds’ eggs, most of them collected 
in the immediate vicinity of York, have also been added by 
presentation, and the entire oological cabinet has been carefully 
examined and re-arranged according to the classification adopted 
by Professor Huxley. 
CoNCHOLOGiCAL DEPARTMENT.— The Conchological Depart¬ 
ment has received an important addition during the past year, 
in the shape of a considerable collection of Shells from Aden, 
collected by the Pev. T. Baynham at that place, and presented 
by him to the Society. Some of the species are new to our 
collection, but all the specimens are of value as they are 
singularly fine and in their natural state, with epidermis 
