November 4, 1921 J 



SCIENCE 



441 



The intensity distribution in the solar spectrum: 



H. H. Plaskett. 

 TJie spectroscopic orbit and dimensions of TV Cas- 



siopeiw: J. 8. Plaskett. 

 The radial velocities of 594 stars: J. S. Plaskett, 



W. E. Harper, R. K. Young, and H. H. Plas- 

 kett. 

 A probable influence of the earth on the formation 



of sun-spots: Luis Rodes. 

 The relation between the diameter of a photo- 

 graphic star image and its magnitude : Frank E. 



Boss. 

 Systematic corrections anid weights of catalogs. An 



addition to Appendix III of Boss's Preliminary 



General Catalog : Arthur J. Rot. 

 Orbits of three spectroscopic binaries: R. F. SaN- 



roRD. 

 Phenomena in connection with our transit of the 



plane of Saturn's rings in 19S0-19S1: E. C. 



Slipher. 

 Further notes on spectrographio observations of 



nebulas and clusters: V. M. Slipher. 

 Some recent results of plate tests at the Harvard 



Astronomical Laboratory : Harlan True Stet- 

 son. 

 The diurnal variation of clock rates: R. H. Tucker. 

 The Elgin Observatory : Frank D. XJeie. 

 Progress in the chronographia registration of radio 



time signals : Frank D. TJrie. 

 The Sam Diego Sadio Time Signals: Frank D. 



TJrie. 

 Internal motion in four spiral nebula: Adbiaan 



VAN Maanen. 

 Atomic structure: Frank W. Very. 

 Solar hot-box studies: Frank W. Very. 

 Observations of 12 Lacertai, 1919, 19S0, 19S1 : R. 



K. Young. 

 Orbit of the spectroscopic binary Boss 5443 : R. K. 



Young. 



Joel Stebbins, 



Seeretary 



NEW YORK MEETING OF THE AMERI- 

 CAN CHEMICAL SOCIETY 



division of biological chemistry 



Arthur W. Dox, Chairman. 

 Howard B. Lewis, Secretary. 



Symposium on Vitamines 



The antineuritic vitamine: Casimib Funk. 

 Experiments on the isolation of crystalline anti- 

 neuritic vitamine : Atherton Seidell. 



Tlie antiscorbutic vitamine: A. F. Hess. 



Factors influencing the vitamine content of food 

 materials: R. Adams Dutchee. 



Standardised methods for the study of vita- 

 mines: A. D. Emmett. In view of the great stress 

 that is being placed upon vitamines with respect 

 to the etiology of certain, deficiency diseases and 

 to the relative content of various products and 

 foods, it would seem almost imperative to follow 

 a more definite method of procedure than is now 

 used in carrying out the biological tests. Other- 

 wise, it is quite conceivable, due to the many pos- 

 sible variables that may easily enter, that the 

 results obtained by the workers from different lab- 

 oratories may be contradictory or even misleading 

 at times. 



It is suggested, a« a step m correcting this con- 

 dition of affairs, that it would be well to outline 

 definitely and in detail the various stages of the 

 procedure so that there can be provisional methods 

 to refer to as standards. If these are established 

 and followed, they will serve as a guide from and 

 to which it will be possible to correlate the results 

 obtained when the animal diets or rations are varied 

 in accord with the needs of the individual projects 

 and make it easier to conclude with more definite- 

 ness the significance of the results. 



Standardized metlwds for the study of vita- 

 mines: A. D. Emmett. 



Vitamines from the standpoint of structural 

 chemistry: R. R. Williams. 



Vitamines from the standpoint of physical chem- 

 istry: V. K. La Mee. 



General Discussion — Katherine Blunt, G. H. 

 A. Cowles, and others. 



The influeTioe of the vitamine content of a feed 

 on the nutritive value of the milk produced: J. S. 

 Hughes, J. B. Fitch, and H. W. Cave. Four 

 calves were started on the experiment; two were 

 from cows which had received a food low in vita- 

 mine during the entire gestation period, the other 

 two were from cows which had received normal 

 feed. During the first week the two calves from 

 the experimental cows received their mothers' milk. 

 At this tim^ one of these cows died and her calf 

 was then given the other experimental cow 'a ndlk. 

 The two calves from the cows receiving normal feed 

 were fed on herd milk exclusively. All four calves 

 wore muzzles so they could get no other feed. All 

 the calves seemed to be normal for the first five 

 weeks, at which time one of the calves receiving the 



