366 CROSS. 



direct determination of physiological heats of 

 reaction. (Balance of appropriation, SlOO, re- 

 turned.) $200 



131. Joel Stebbins. Use of selenium in photometry 100 



132. Willard J. Fisher. Viscosity of gases. (Balance 



of appropriation, S41, subsequently transferred 



to Edward L. Nichols. See 175.) ^ 100 



133. Norton A. Kent. For the purchase of a set of 



echelon plates. (Additional to 124.) .... 400 



134. Joel Stebbins. Use of selenium in stellar pho- 



tometry. (Additional to 131.) 100 



1909. 135. William \V. Campbell. For the purchase of a 



Hartmann photometer to be used in the measure- 

 ment of polarigraphic images of the solar corona 250 



136. Robert W. Wood. Optical properties of mercury 



vapor. (Additional to 123.) 1.50 



137. Martin A. Rosanoff. Fractional distillation of 



binary mixtures 300 



138. Charles E. Mendenhall. Free expansion of gases 300 



139. William W. Campbell. For the purchase of cer- 



tain parts of a cjuartz spectrograph .... 300 



140. Martin A. RosanofP. Fractional distillation of 



binary mixtures. (Additional to 137.) . . . 200 



141. Leonard R. IngersoU. Optical constants of metals 300 



142. Joel Stebbins. Researches with the selenium 



photometer. (Additional to 134.) .... 350 



143. William W. Campbell. Polariscopic study of the 



solar corona by means of a Hartmann photo- 

 meter. (Additional to 135.) 125 



1910. 144. Charles E. Mendenhall and Augustus Trowbridge. 



Influence of ether drift upon the intensity of 

 radiation 250 



145. Charles E. Mendenhall. Free expansion of gases. 



(Additional to 138.) 250 



146. Frank W. Very. For the purchase of photo- 



graphic glass plates of the spectrum by George 

 Higgs 50 



147. Maurice DeK. Thompson. The high temperature 



ecjuilibrium of the system of materials employed 

 industrially in the carbide process for the fixa- 

 tion of atmospheric nitrogen 100 



