172 



Pearl and Surface. 



■ — , 1911b: The Mendelian Ratio and Blended Inheritance. Amer. Naturalist, Vol. 45, 



pp. 99—106. 

 MiNOT, C. S., 1891: Senescence and Rejuvenation. First paper: on the Weight of 



Guinea-pigs. .Jour, of Physiol., Vol. 12, pp. 97 — 15.3. 

 — , 1907: The Problem of Age, Growth, and Death. Popular Science Monthly, Vol. 71. 

 Nilsson-Ehle, H., 1908: Einige Ergebnisse von Kreuzung bei Hafer und Weizen. 



Botan. Notiser, pp. 257—294. 

 — , 1909: Kreuzungsuntersuchungen an Hafer und Weizen. Lunds Universitets Ärs- 



skrift n. s. sec. 2, Vol. 5, No. 2, pp. 1—122. 

 — , 1911: Kreuzungsuntersuchungen an Hafer und Weizen II. Lunds Universitets Ars- 



skrift n. s. sec. 2, Vol. 7, No. 6, pp. 1—82. 

 Pe.\RL, R., 1907: Variation and Differentiation in Ceratophyllum. Carnegie Institution 



Publication Nr. 58, pp. 1 — 1.35. 

 — and Surface, F. M., 1910: Experiments in Breeding Sweet Corn. Ann. Rpt. Me. 



Agr. Exp. Sta. 1910, pp. 249—307. 

 Pearson, K., 1904: On a Generalized Theory of Alternative Inheritance with Special 



Reference to Mendel's Laws. Phil. Trans. Roy. Soc. Ser. A., Vol. 20,3, pp. 5.3—86. 



Table 25. 

 Frequency Distributions of Plants in Series A. 



