Biologia generalis 



30 



uality of egss of same bird shown in each physical character (yolk 

 most constant part). Individuals less variable tban race. Corrélation of 

 egg characters. Intra-individual variation in relation to âge, season, 

 state of healtb, location in litter cycle, interval between layings.j — 

 Factors Influencing the Size, Shape and Physical Constitution of the 

 Egg of the Domestic Fowl. SOth ann. Hep. Maine agric. Exper. Stat. 

 Bull. No. 228 p. 105-136. 

 209616 Cool, C, and A. N. Koopinans. 575.2 

 1915. Variation and Corrélation of the Number of Umbel Rays of some 

 Umbelliferae. Bioinetrika Yoî. 11 p. 38—49, 1 pl., 5 figg. 



17 Davis, Bradley Moore. 575.2 



1915. Additional Evidence of Mutation in Oenothera. Amer. Natural. 

 Vol. 49 p. 702-706. 



18 Duucan, F. N. 575.2 



1915. An Attempt to Produce Mutations through Hybiidization. Amer. 

 Natural. Vol. 49 p. 575-582. [No influence.] 



19 Gates, II. Ruggles. 575.2 



1915. An Antieipatory Mutationist. Amer. Natural. Vol. 49 p. 645 — 648. 

 [Thomas Meehan.] 



20 Gates, il. Ruggles. 575.2 



1915. On (Successive Duplicate Mutations. Biol. Bull. Woods Hole Vol. 

 29 p. 204-220. [In Oenothera.] 



21 Gates, 1t. iluggles. 575.2 



1915. On the Modification of Characters by Crossing. Amer. Natural. 

 Vol. 49 p. 562-569. 



22 Gates, H. Ruggles. 575.2 



1915. The Mutation Factor in Evolution with Particular Référence to 

 Œnothera. London : Macmillan & Co. XIV, 8ê3 pp. (Review by Bradley 

 M. Davis, Science' N. S. Vol. 42 p. 648—651. 



23 Harris, J. Arthur. 575,2 



1915. The Valuo of Inter-annual Corrélations. Amer. Natural. Vol. 49 

 p. 707-712. 



209624 Isserlis, L. 575.2 

 1915. On the Partial Correlation-Ratio. Part II. Numerical. Biometrika 

 Vol. 11 p. 50 -6d, 5 figg. 



25 Köhlisch, 575.2 



1915. Bakteriologische Befunde bei einem Fall von Meningokokken- 

 sepsis; gibt es eine Mutation bei Meningokokken? Zeitschr. Hyg. In« 

 fektionskr. Bd. 80 p. 404—430, 1 Tal, 10 figg. [Erklärung der verschie- 

 denen Symptome (Meningitis, Kniegelenkentzündung, kryptogenetisches 

 Fieber) durch ebensoviele Mutationen.] 



26 Orensteen, Myer M* 575.2 



1915. Corrélation of Anthropological Measurements in Cairo-born Na- 

 tives. Biometrika Vol. 11 p. 67—81, 6 figg. 



27 Pearson, Karl. 575.2 



1915. On certain Types of Compound Frequency Distributions in which 

 the Components can be individually described by Binomial Serie3. Bio- 

 metrika Vol. 11 p. 139—144. 



28 Ritchie-Scott, A. 575.2 



1915. Note on the Probable Error of the Coefficient of Corrélation in 

 the Variate Différence Corrélation Method. Biometrika Vol. 11 p. 136 

 lgg # 



209R29 Walton,' L. B. 575.2 

 1915. Variability and Amphimixis. A Comparative Study of the Varia- 

 bility in Zygospores of Spircgyra inflata (Vauch.) formed by Lateral 

 (Close breeding) and by Scalariform (Cross breeding) Conjugation, and 

 its Bearing on the Theory of Amphimixis and Correlated Problems. 

 Amer. Natural. Vol. 49 p. 649—687, 6 figg. [Close breeding yields great- 

 er variability. Amphimixis decreases variability (eumulability) although, 

 amphimutability may be temporarily increased.] 



