WEATHER AND CHANGE IN WEIGHT OP BEE COLONY 



51 



Hartzell, F. Z. 



1919. Comparison of methods for computing daily mean tem- 

 peratures: Effect of discrepancies upon investigations of climatolo- 

 gists and biologists. Geneva (N. Y.) Agr. Exp. Sta. Tech. Bui. 

 68, 35 pp., 19 figs., 2 pis. 



Haupt, Hugo. 



1902. Zur Sekretionsmechanik der extrafioralen Nektarien. In Flora, 

 Bd. 90, pp. 1-41. 



HOMMELL, R. 



1919. Apiculture. Ed. 3, 501 pp., 183 figs., Paris. 



Kenoyer, Leslie A. 



1917. The weather and honev production. In Iowa Agr. Exp. Sta. 

 Bui. 169, pp. 13-26, chart* 



1917. Environmental influences on nectar secretion. In Bot. Gaz., 

 vol. 63, No. 4, pp. 249-265. 



Kenyon, F. C. 



1898. The daily and seasonal activitv of a hive of bees. In Amer. 

 Nat., vol. 32, No. 374, pp. 90-95, 2 figs. 



LOFTFIELD, J. V. G. 



1921. The behavior of stomata. Carnegie Inst. Wash. Pub. 314, 

 104 pp., 54 figs., 16 pis. 



Matjjean, A. 



1906. Evaporation nocturne. In Apiculteur, vol. 50, No. 9, pp. 

 326-332. 



Merrill, J. H. 



1923. Response to the nectar stimulus. In Amer. Bee Jour., vol. 63, 

 No. 12, p. 607. 



Miner, John R. 



1922. Tables of -yjl — r 2 and 1 — r 2 for use in partial correlation and in 

 trigonometry. 49 pp. Baltimore. 



Ono, K. 



1907. Studies on some extranuptial nectaries. In Jour. Col. Sci. Imp. 

 Univ. Tokyo, vol. 23, Art. 3, 28 pp., 3 pis. 



Palladin, V. I. 



1914. Plant Physiology. Tr. from German translation of 6th Russian 

 ed., rev. and ed. by B. F. Livingston, xxxiii, 360 pp., 173 figs. 

 Philadelphia. 



Patterson, Cecil F. 



1922. Growth in seedlings of Phaseolus vulgaris in relation to relative 

 humiditv and temperature. Trans. Roy. Canad. Inst., vol. 14, 

 pp. 23-68. 



Pearson, Karl. 



1914. Tables for statisticians and biometricians. lxxxiii, 143 pp. 

 Cambridge. 



Phillips, E. F., and Demuth, Geo. S. 



1915. Outdoor wintering of bees. U. S. Dept. Agr. Bui. 695, 12 pp. 



1922. Beekeeping in the clover region. U. S. Dept. Agr. Farmers' 

 Bui. 1215, 27 pp., 7 figs. 



Stiles, Walter. 



1922. Permeability. Osmotic pressure. In New Phytologist, vol. 

 21, No. 1, pp. 1-14, figs. 4-6. 



Wilson", William P. 



1881. The cause of the excretion of water on the surface of nectaries. 

 ("iitersufhuujreii ;ius Hem J',ot;uiisclic.ii Institut zu Tubingen 

 herausgegeben v. Dr. W. Pfeffer, Erster Band (1881-5), Writ 

 (1881) pp. 1-22. 



