440 



THE AMERICAN NATURALIST [Vol. XL VII 



CHRONOLOGICAL LIST OF PAPERS 



here given in parentheses. The papers in the Proceedings of the Society of 

 Experimental Biology and Medicine and in Science are merely short ab- 

 stracts on work published in full in other papers.) 



(1) Woodruff, L. L., An Experimental Study on the Life History of 

 Hypotriehous Infusoria, Journ. Exp. Zool., 2: 585-632, November, 1905.— 

 (2) Id., Variation During the Life Cycle of Infusoria and its Bearings on 

 the Determination of Species, Science, 25: 734-735, May 10, 1907.— (3) 

 Id,, The Life Cycle of Paramecium, Proc. Soc. Exp. Biol, and Med., 5 : 124, 

 May 20, 1908.- (4) Id., The Effect of Alcohol on the Life Cycle of Infu- 

 soria, Biol. Bui, 15: 85-104, 1908.- (5) Id., The Life Cycle of Paramecium 

 when Subjected to a Varied Environment, Amer. Nat., 42 : 520-526, August, 

 1908.- (6) Id., Studies on the Life Cycle of Paramecium, Proc. Soc. Exp. 

 Biol, and Med., 6: 117-118, May 26, 1909.- (7) Id., Further Studies on 

 the Life Cycle of Paramecium, Biol. Bui., 17: 287-308, September, 1909.- 

 (8) Woodruff, L. L., and Bunzel, PL. H., The Relative Toxicity of Various 

 Salts and Acids toward Paramecium, Amu: Journ. Physiol., 25: 190-194, 

 December, 1909.- (9) Woodruff, L. L., Ou the Power of Reproduction with- 

 out Conjugation in Paramecium, Proc. Soc. Exp. Biol, and Med., 7: 144, 

 May 18, 1910.— (10) Id., Two Thousand Generations of Paramecium, 

 Archiv f. Protistenkunde, 21: 263-266, 1911.- (11) Id., The Effect of 

 Culture Medium Contaminated with Excretion Products of Paramecium on 

 its Rate of Reproduction, Proc. Soc. Exp. Biol, and Med., 8: 100, April 19, 

 1911.- (12) Id., The Effect of Excretion Products of Paramecium on its 

 Rate of Reproduction, Journ. Exp. Zool, 10: 557-581, May, 1911.— (13) 



A., Conjugation of Closely Related Individuals of Stylonychia, 



Proc. Soc. Exp. Biol, and Med., 8: 5, May 17, 1911.- (14) Woodruff, L. L., 

 Paramecium aurelia and Paramecium caudatum, Journ. Morphol., 22: 223- 

 237, June, 1911.- (15) Woodruff, L. L., and Baitsell, G. A., The Reproduc- 

 tion of Paramecium aurelia in a "Constant" Culture Medium of Beef 

 Extract, Journ. Exp. Zool., 11: 135-142, July 5, 1911.- (16) Id., Rhythms 

 in the Reproductive Activity of Infusoria. Journ. Exp. Zool., 11: 339-359, 

 November 20, 1911.- (17) Id., The Temperature Coefficient of the Rate of 

 Reproduction of Paramecium aurelia, Anur. Journ. Physiol, 29: 147-155, 

 December 1, 1911.- (18) Woodruff, L. L., Evidence on the Adaptation of 

 Paramecium to Different Environments, Biol. Bui, 22: 60-65, December, 

 1911.- (19) Id., Observations on the Origin and Sequence of the Protozoan 

 Fauna of Hay Infusions, Journ. Exp. Zool, 12: 205-264, February 10, 1912. 

 -(20) Fine, M. S., Chemical Properties of Hay Infusions with Special 

 Reference to the Titratable Acidity and its Relation to the Protozoan 

 Sequence, Journ. Exp. Zool, 12: 2, February 10, 1912.- (21) Woodruff, 

 L. L., The Sequence of Protozoan Fauna in Hay Infusions, Proc. Soc. Exp. 

 Bid. and Med., 9 : 65-66, February 21, 1912.- (22) Woodruff, L. L., A 

 Five-year Pedigreed Race of Paramecium without Conjugation, Proc. Soc. 



:tion of the Hypotriehous Infusoria. I. Con- 

 jlated Individuals of Stylonychm pustulata, 

 July 5, 1912. 



1912. 



2.- (23) Baitsell, G. A., 



Jour,.. /-:.; 



