PROCEEDINGS. XIII 



TYPE OF FOSSIL CRYPTOGAMIC LIFE FROM THE FORT UNION 

 GROUPS.* 



Dr. Cooper Curtice described the SEXUAL DIFFERENCES IN 

 TRICOCEPHALI. 



ONE HUNDRED AND THIRTY-THIRD MEETING, 

 December i, 1888. 



Vice-President Ward in the Chair, and twenty-eight persons 

 present. 



Dr. Gill read a paper ON THE RELATIONS OF THE PSYCHRO- 



Dr. C. Hart Merriam gave a description of A NEW GROUND 

 SQUIRREL FROM CALIFORNIA. J Discussed by Prof. Riley and 

 Mr. True. 



Mr. F. W. True made some REMARKS ON THE DEER OF 

 CENTRAL AMERICA. Discussed by Dr. Merriam. 



Prof. C. V. Riley read a paper entitled NOTES ON THE 

 ECONOMY OF THALESSA AND TREMEX.|| 



Mr. B. E. Fernow discussed THE CAUSES OF CONFIGURA 

 TION OF TREES. Discussed by Prof. Riley and Mr. Ward. 



ONE HUNDRED AND THIRTY-FOURTH MEETING. 

 December 15, 1888. 



Vice-President Ward in the chair, and twenty-nine persons 

 present. 



* 1888. Abstract in Proc. Am. Ass. Adv. Sci. Vol. XXXVII, pp. 199-201. 



t 1888. Proc. U. S. Nat. Mus. 



J 1888. Merriam C. Hart. Description of a new Spermophile from 

 California. (Spermophilus beldingi). < Annals N. Y. Acad. Sci. IV, 

 317-321, fig. skull. Separates issued December. 



2 1888. Proc. U. S. Nat. Mus., pp. 417-424. 



I!*i888. Insect Life, Vol. I, p. 168. 



