STATISTICAL BIOLOGICAL STUDY. 69 



Lot. A a C 



[ocyltia, num. radial canals 5.004 .094 0.441 8.81 



lips 4.868.012 0.556 11.4 



Protista. 



Paramecium recently divided, Simpson, '02; seriation of 

 diameter of Actinospherium and number of cysts and nuclei 

 in body, Smith, '03; outer and inner diameters of shell of 

 502 Arcella vulgaris, Pearl and Dunbar, '03; various diatoms, 

 Schroter and Vogler, '01. 



Lot. A a C 



Paramecium, length n 229.05 19. 15 8.36% 



breadth 68.13 9.16 13.44 



index 29.91 4.03 



Arcella, outer diameter 55.79.17 5.73.12 10.27.22 



inner diameter 15.91.07 2.17.05 13.66.30 



Plants. 



GENERAL. Multimodal polygons especially frequent in 

 plants, Ludwig, '97; critical, Lee, '02; Pearson, '02 h . 



RAY-FLOWERS IN COMPOSITE. Seriation of ray-frequency 

 of Coreopsis, de Vries, '94; of Senecio nemorensis, S. fuchsii, 

 Cent urea cyanus, C. jacea, Solidago virga aurea, Achilla mille- 

 folium, Ludwig, '96; ray-frequency in Chrysanthemum, 

 Ludwig, '97 C , Lucas, '98, Tower, '02, Pearson and Yule, '02; 

 Helianthus, Wilcox, '02; Bellis perennis, Ludwig, '9S b ; Soli- 

 dago serotina, Ludwig, '00 b ; Arnica montana, Ludwig, '01; 

 Aster, Shull, '02. 



Num. Ray-flowers. A o C 



Aster shortii 14.000.068 1.526.048 10.90 



A. novaj-anglise 42.874.302 6.308.213 14.71 



A.punicens 36.672.107 4.480.076 12.22 



A. prenanthoides 28.080 .107 4.070 .077 14.52 



OTHER SERIATIONS OF FLORAL ORGANS: Ranunculacece. 

 Petals, Ranunculus bulbosus, de Vries, '94, Pearson, '95; 

 calyx, coralla, stamens, and pistils of Ficaria verna, Ludwig, 

 '01; number of Ficaria pistils, early flowers, A = 17.448, a= 

 3.89; late flowers, A = 12.147, <r=3.88; number of stamens, 

 early, A = 26.731, (7=3.761 and late, A = 17,863, <y=3.298, 



