430 AXXAL.S XEW YORK ACADEMY OF SCIEXCES 



the two set^ of blends just mentioned, and these were fonnd in two solu- 

 tions kept in every well equipped analytical laboratory — the volumetric 

 solutions of potassium dichromate and potassium permanganate. 



An investigation of these fluids showed that a one-thousandth normal 

 permanganate volumetric solution containing 0.0313 grammes of K]\InO^ 

 to the liter has about the same intensity of color as a one-hundredth nor- 

 mal dichromate solution containing 0.487 grammes of K2Cr2 0- to the 

 lit-er and blends of these two fluids are designated as to "Cro-Manganate" 

 tints. As might be expected, these blends are extremely unstable and 

 must be used for matching within one or two hours after mixing. 



Comparing blends of these with the nitrite test mentioned above, it 

 was found that the tint produced by a nitrite dilution representing 1 

 part of nitrogen in 10 million was matched by the standard "Cro-^Ian- 

 ganate*' blend 15-1 diluted to 55 per cent. 



The Section then adjourned. E. E. Smith. 



Secretary. 



SECTIOX OF AXTHEOPOLOGY AXD PSYCHOLOGY 



25 OCTOBEE, 1915 



Section met in conjunction with the American Ethnological Society, 

 Vice-President Clark TVissler presiding. 

 The following programme was offered : 



Marshall H. Saville, Field Activities of the Museum of the Amer- 



ICAX IXDIAX, 1915. 



Professor Saville outlined the operations carried on under the auspices 

 of ^\t. George G. Heye during the past year. The work achieved was 

 both archeological and ethnological and embraced South America as well 

 as Xorth America. Somatological material is not to be installed by the 

 Museum, but is turned over to the Xational Museum in AVashington. 

 D. C. The speaker summarized the investigations carried on by himself, 

 Mr. Theodor de Booy and others, illustrating his lecture with slides. 



The Section then adjourned. 



Egbert H. Lowie, 



Secretary. 



BUSINESS MEETIXG 



1 XOVEMBER. 1915 



The Academy met at 8:15 p. :m. at the American ^Museum of Xatural 

 History. Vice-President Charles P. Berkey presiding. 



