CO INTIT TEL INGIES Ova WO GOS 
PART I. 
ARTICLE I. 
A New Method of Determining the General Perturbations of the Minor Planets. By William McKnight 
Ritter, M.A. . 
ARTICLE II. 
An Essay on the Development of the Mouth Parts of Certain Insects. By John B. Smith, Sc.D. (With 3 plates) 
PART II. 
ARTICLE III. 
Some Experiments with the Saliva of the Gila Monster (Heloderma suspectum). By John Van Denburgh, Ph.D. . 
ARTICLE Ivy. 
Results of Recent Researches on the Evolution of the Stellar Systems. By T. J. J. See, A.M., Ph.D. (Berlin). 
(With 2 plates) 
ARTICLE V. 
On the Glossophaginz. By Harrison Allen, M.D. (With 10 plates) 
ARTICLE VI. 
The Skull and Teeth of Ectophylla alba. By Harrison Allen, M.D. (With 1 plate) 
PART III.. 
ARTICLE VII. 
The Osteology of Elotherium. By W. B. Scott. (With 2 plates) 
ARTICLE VIII. 
4 
Notes on the Canidve of the White River Oligocene. By W. B. Scott. (With 2 plates) 
ARTICLE IX. 
Contributions to a Revision of the North American Beavers, Otters and Fishers. By Samuel N. Rhoads. (With 5 
plates) 
199 
237 
267 
417 
