OP ARTS AND SCIENCES. 325 



On the Butanes and Octanes in American Petroleum. By 

 Charles F. Mabery and Edward J. Hudson, 



On the Sulphur Compounds and Unsaturated Hydrocarbons 

 in Canadian Petroleum. By Charles F. Mabery and William 

 O. Quayle. 



On the Composition of a South American Petroleum. By 

 Charles F. Mabery and Arthur S. Kittelberger. 



On the Specific Refractive Power of Petroleum Hydrocar- 

 bons, and some of their Derivatives. By Charles F. Mabery 

 and Edward J. Hudson. 



The Viscosity of Mercury Vapor. By A. A. Noyes and 

 H. M. Goodwin. 



Contributions from the Zoological Laboratory of the Museum 

 of Comparative Zoology at Harvard College. E. L. Mark, Di- 

 rector. No. 73. — Studies in Morphogenesis. 6. A Contribution 

 to the Quantitative Study of Correlated Variation and the 

 Comparative Variability of the Sexes. By C. B. Davenport 

 and C. Bullard. 



Voted, To meet on adjournment on the second Wednesday 

 in November. 



Eight hundred and eighty-fifth Meeting. 



November 11, 1896. — Adjourned Stated Meeting. 



Vice-President George L. Goodale in the chair. 

 As a quorum for business was not present it was 

 Voted, To meet on adjournment on the second Wednesday 

 in December. 



Eight hundred and eighty-sixth Meeting. 



December 9, 1896. — Adjourned Stated Meeting. 



The Academy met at the house of the President in Cambridge. 

 The President in the chair. 



