200 RBJPORTS OF INVi;STlGATlONS AND PROJE;cTS. 



MATHEMATICS. 



Lehmer, D. N., Berkeley, California. Grant No. 374. Comparison of 

 factor table of first ten millions with manuscript table of Kidik. (For 

 previous reports see Year Book No. 3, p. 121, and Year Book No. 5, 

 p. 203.) $400. 



A careful comparison, entry for entry, has been made with the tables of 

 Burckhardt for the first three millions ; with the tables of Glaisher for the 

 fourth, fifth, and sixth millions ; with the tables of Dase for the seventh, 

 eighth, and ninth millions, and with the manuscript tables of Kulik for the 

 tenth. Many errors hitherto undetected have been found in all the tables. 

 A complete recount of primes has been made for all the millions. The results 

 of the computations of Meissel and others have been completely verified by 

 actual count. The results of Bertelsen for the successive groups of ten 

 thousand in the tenth million have also been found to agree with actual count. 



METEOROLOGY. 



Bjerknes, V,, and Sandstrom, J. W., Christiania, Norway. Grant No. 428. 



Preparation of a work on the application of the methods of hydro- 

 dynamics and thermodynamics to practical meteorology and hydrog- 

 raphy. (For previous report see Year Book No. 5, p. 212.) $1,200. 



The first part of a "Treatise on Dynamical Meteorology and Hydrog- 

 raphy," dealing with the statics of the atmosphere and the sea, is in press. 

 For the next part, meteorological and hydrographical observations have been 

 made and systematized. This part will treat the kinematics of the atmos- 

 phere and the sea, and give practical applications of the equation of con- 

 tinuity for the investigations of air and sea motions. 



NUTRITION. 



Chittenden, Russell H., Sheffield Scientific School, New Haven, Connecticut. 

 Grant No. 348. Minimal proteid requirements of high-proteid animals. 

 (For previous reports see Year Book No. 3, p. 131 ; Year Book No. 4, 

 p. 259, and Year Book No. 5, p. 213.) Grant No. 376. The influence 

 of hydrazin upon intermediary metabolism. $2,500. 



Grant No. 348 ($1,500). — ^This investigation, carried out in the Labora- 

 tory of Physiological Chemistry of the Sheffield Scientific School of Yale 

 University, is now completed, and a detailed report of the results obtained is 

 in preparation. A careful study has been made of the influence of different 

 forms of nitrogen-containing food upon dogs as a type of high-proteid 

 animals. The results with many animals show that the standards set years 

 ago by Immanuel Munk and Rosenheim of Berlin, and Jagerroos of Finland, 

 are unnecessarilv high. Further, that the deleterious results of a low-pro- 



