S E P T E M B E R , 193i
INDUSTRIAL AKD E N G I N E E R I N G CHEMISTRY
grading of t h e tobacco used i n t h i s investigation. T h e y also collected t h e weather d a t a presented in Table 111.
Literature Cited (1) Anderson, P. J., Swanback, T. R., and Street, 0. E., Conn. Agr. Expt. Sta., Bull. 311 (1929). (2) Assoc. Official Agr. Chem., Methods of Analysis, 2nd ed., 1925. (3) Astruc, A,. Ann. Sei. Nat. Botan., [8] 17, 1-108 (1903). (4) Blair, A. W., and McLean, H. C., Soil Sci., 1, 489-504 (1916). (5) Burd, J. S., J. A g r . Research, 18, 51-72 (1919). (6) Clevenger, C. B., S o i l Sei., 8, 227-42 (1919). (7) Creaves, J. R., and Carter, E. G., Ibid., 7, 121-60 (1919). (8) Darkis, F. R., Dixon, L. F., and Gross, P. M., IND. ENQ.CHEM., 27, 1152-7 (1935). (9) Darkis, F. R., Dixon, L. P., Wolf, F. A., and Gross, P. M., Ibid., 28,1214-23 (1936). (10) Dixon, L. F., Darkis, F. R., Wolf, F. A., Hall, J. A., Jones, E. P., and Gross, P. M., Ibid., 28, 180-9 (1936). (11) Eckerson, S. H., Botan. Gaz., 77, 377-90 (1924). (12) Garner, W. W., McMurtrey, J. E., and Bowling, J. D., J. Agr. Research, 40, 145-68 (1930). (13) Garner, W. W., McMurtrey, J. E., Bowling, J. D., and Moss, E. G., Ibid., 40, 627 (1930). (14) Gerhardt, K., Naturwissenschaften, 8, 41-3 (1920). (15) Ginsburg, J. M., and Shive, J. W., SoiE Sei., 22, 175-97 (1926). (16) Haas, A. R. C., Ibid., 9, 341-69 (1920). (17) Haley, D. E . , Nassett, E. S., and Olson, O., Plant Physiol., 3, 185 (1928). (18) Hartwell, B. L., R. I. Agr. Expt. Sta., Bull. 165 (1916). (19) Hoagland, J. R., Ann. Rev. Biochem., 1, 618-36 (1932). (20) Karraker, P. M., Soil Sci., 24, 147 (1927). (21) Kelley, W. P., and Cummins, A. B., J. Agr. Research, 20, 161-91 (1920). (22) Kostychev, S., “Plant Respiration,” pp. 133-42, Philadelphia, P. Blakiston’s Son & Co., 1927.
1039
(23) Kraus, E. J., and Kraybill, € R., I.Oreg. Agr. Expt. Sta., Bull. 149 (1918). 1241 LiDman. J. G.. Soil Sci.. 9. 83-114 119201. (25) Lipman, J. G., and Blair, A. W., Ibid., 4, 71-2 (1917). (26) Ibid., 9, 375-92 (1920). (27) Loew, Oscar, U. S. Dept. Agr., Bur. Plant Ind., Bull 45, 20 (1903). (28) Long, E. R., Plant World, 18, 261-72 (1915). (29) Lyon, T. L., Bizzel, J. A., Wilson, B. D., and Leland, E. W.. Cornell Univ. Agr. Expt. Sta. Mem., 134, 5-72 (1930). (30) McDougal, D. J., Long, E. R., and Brown, J. G., Ph&oZ. Researches, 1, 289-325 (1915). (31) McIntyre, W. H., Shaw, W. A t . , and Young, J. B., J. Agr. Sci., 20, 499-510 (1930). (32) Morse, F. W.; Mass. Agr. Expt. Sta., Bull. 161 (1915). (33) Moss, E. G., S. Am. SOC.Agron., 21, 137 (1929). (34) Moss, E. G., U. S. Dept. Agr., Tech. Bull. 12 (1927). (35) Nightingale, G. T., Addoms, R. M., Robbins, W. R., and Schermerhorn. L. G.. Plant Phusiol.. 6. 605-30 (19311. (36) Nightingale, G. T., and Robbinsr W. R.; N. J. Agr. Expt Sta., Bull. 472 (1928). (37) Nightingale, G. T., Schermerhorn, L. G., and Robbins, W. R., Ibid., 461 (1928). (38) Parker, F. W., and Truog, E., Soil Sei., 10, 49 (1920). (39) Reed, H. S., Ann. Botanu, 21. 5 0 1 4 3 (1907). (40) Reed, H. S.,and Haas,-A. R . C., Univ. Calif., Tech. Paper 4 (1923). (41) Richards, H. M., Carnegie Inst. Wash. Pub. 209 (1915). (42) Schimper, A. F. W., Flora, 73, 207-61 (1890). (43) Sobcek, Jar., Listy Cukrovar., 46, 651-4 (1928). (44) Thatcher, R . W., “Chemistry of Plant Life,” p. 127, New York, McGraw-Hill Book Co., 1921. (45) Thomas, Walter, Plant Physiol., 5 , 443 (1930). (46) Truog, E., and Meacham, M. R., Soil Sci., 7, 469-74 (1919). RECEIVED June 12, 1937.
THE ALCHYMIST By Thomas Wijck (1617-1677) With No. 81 in the Berolzheimer Series of Alchemical and Historical Reproductions, we present the seventh painting by this artist. The original is in the Art Gallery in La Hague and, like all of Wijck’s paintings, is sombre in style. The room depicted, with its stained glass window, draped curtain, salamander, globe, tattered books, etc., seems to be the same as in his other paintings. The furnace a t the left, with its alembic, crucibles, and other primitive equipment appears to be as usual for those days, probably having been purchased a t the E. & A. shop of about 280 years ago.
A detailed list of Reproductions Nos. 1 to 60 appeared in our issue of January, 1936, page 129 and the list of Nos. 61 to 72 appeared ID Janhary 1937 page 74 where also will be found keprodbction NA. 73. Reproduction No 74 appears on page 166 February issue No: 75 on pa.ge 345, March ‘issue, No. 76 0; page 459, -4pnl imue, No.77 on, page 554, May issue, No. 78 on page 710 June issue, No. 79 on page 776, July issue, an6. No. 80 on page 945, August issue.
