24. 
Temple Prime; the subjects treated by these authors being 
as follows ;— 
By Thomas Bland ; 
Description of a new species of Molluse of the genus 
Helicina. 
By Thomas Bland and W. G. Binney ; 
On the Systematic Arrangement of North American Ter- 
restrial Molluses. 
On the Relations of certain genera of Terrestrial Mollusca 
of, or related to, the Subfamily Succininew, with notes on the 
Lingual Dentition of Succinea appendiculata, Pf., with plate IX. 
Description of Hemphillia, a new genus of Terrestrial 
Mollusca. 
On the Lingual Dentition of certain Terrestrial Pulmonata, 
foreign to the United States. 
By Dr. P. Fischer ; 
Note sur l’Anatomie des Cyrénes Americaines, with plate 
VOL 
By William J. Hays; 
Description of a species of Cervus, with plate X. 
By George N. Lawrence ; 
Description of New Species of Birds of the Genera Icterus 
and Synallaxis. 
By Prof. Benj. N. Martin ; 
Essay upon a Necessary Limitation of the Doctrine of the 
Unity of the General Forces of Nature. 
By Prof. Edward 8. Morse ; 
On the Tarsus and Carpus of Birds, with plates IV. and VY. 
By Dr. Felipe Poey ; 
Monographie des Poissons de Cuba compris dans la sous- 
famille des Sparini, with plates VI. and VIL. 
By Temple Prime; 
Notes on Specimens of Corbiculade in the cabinet of the 
Jardin des Plantes at Paris, and on the authorship of the 
Encyclopédie Méthodique, with plate VILL 
The Committee, while referring to the unusual extent of 
the plates thus published, desire to record the facts that the 
. Society has incurred no other cost than that of paper and 
