Il. 
HI. 
IV. 
iv. 
PE Aa S 
De Vis.—Molar and Incisor Teeth of Prochzrus celer. 
Tolson.—Diagramatic representation of the principles involved in 
refrigeration. 
De Vis.—Femur of Thylacoleo, reduced in the proportion of 135 to 
296, from a photograph. 
De Vis.—The same, view of opposite side. 
