34 GENETICS [BoT. Absts., Vol. VIII, 



while head length is stable in Crete. For Crete stature of living adult males is 170.61 ± 0.26 

 cm. (175.26 zb 0.54 cm. for Selinos and Sphakia only); for Cyprus it is 168.77 ±0.17 cm. 

 Blue eyes are locally not uncommon, about 10 per cent in Albania and Cyprus, about 5 per 

 cent in Crete. Pigmentation is apparently not definitely correlated with cephalic index. 

 Lycian gypsies are only clear representatives of "Armenoid" race. Greeks are a mixture prob- 

 ably of early date of Mediterranean and Alpine types. No good ground appears for inferring 

 Nordic blood. — John Rice Miner. 



237. Carle, E. Premiers travaux sur la selection des riz du laboratoire d'etude des 

 cereales a Saigon. [First work in selection of rice at the Saigon laboratory for the study of 

 cereals.] Bull. Agric. Inst. Sci. Saigon 1 : 74-87. 1919. — As preliminary work to the improve- 

 ment of rice in Cochin-China, an agronomic study of 700-800 varieties of rice was made, 

 resulting in the use of those varieties with more or less round kernels as better suited for the 

 production of the finest rice. Selection from the second generation indicates a considerable 

 improvement in the homogeneity of the grain; also a slight increase in the tillering capacity 

 of the plants and in the weight of the grain. Certain strains also gave much greater yields 

 than those used as checks, but in succeeding generations it was observed that this character 

 was not constant. By comparing the yields of all strains in the preceding generations it seems 

 possible in the third generation to classify those which appear most constant in heavy yield. 

 In the fourth generation a certain number of choice strains can be isolated. — Chas. R. Cham- 

 bliss. 



238. Carle, E. Selection pedigree appliquee a la variete local de riz Phung-tien. [Pedi- 

 gree selection applied to the local rice variety known as Phung-tien.] Bull. Agric. Inst. Sci. 

 Saigon 2: 26-32. 1920. — Pure line selections of rice variety Phung-tien made and tested at 

 Experiment Station at Phu-my (Cochin-China). Five best lines selected from 100 grown 

 during first year show greater uniformity and are otherwise superior to original variety. 

 Data on number and weight of heads are presented. — C. E. Leighty. 



239. Carle, E. Selection pedigree appliquee a la variete de riz "N^ng-Meo." [Pedi- 

 gree selection applied to the variety of rice known as "Nang Meo."] Bull. Agric. Inst. Sci. 

 Saigon 2:73-75. 1920. — Improvement of rice variety "Nang-Meo" by selection is being 

 attempted at Experimental Station at Phu-my (Cochin-China), according to methods de- 

 scribed earlier in this bulletin (Vol. 1, 1920). Data on number and weight of heads of 4 lines 

 for 3 years are presented. Nursery yields indicate commercial value of strains. Homo- 

 geneity of pure lines and characters differentiating them are noted. — C. E. Leighty. 



240. Collins, E. J. The genetics of sex. Proc. Roy. Soc. London B, 91 : 369-370. 1920- 

 — Vegetative cultures from the monoecious moss, Funariahygrometrica,mside by removing 

 the greater part of an archegonium, regenerated the typical monoecious gametophyte, unlike 

 the vegetative cultures derived from antheridia and surrounding "perigonial leaves" of the 

 same species which produce male plants only. Up to the point of the formation of the female 

 organ, the cells of the haploid gametophytic phase retain the power to produce monoecious 

 plants, whereas the leaves surrounding the male organ have lost this power. — D. F. Jones. 



241. Collins, Julius L. Inbreeding and cross breeding in Crepis capillaris (L.) Wallr. 

 Univ. California Publ. Agric. Sci. 2: 205-216. PI. 39-41. 1920.— The naturally cross-ferti- 

 lized wild plant, Crepis capillaris, when inbred, gives results similar to domesticated maize 

 when so treated. The inbred plants compared with cross-bred ones show a slower rate of 

 development during the entire period of growth. Some of the inbred strains exhibited partial 

 pollen sterility. Complete absence of pollen was noted in one plant obtained from seed of 

 wild plants growing in New Zealand. The maximum reduction appeared to be reached in the 

 third and fourth generations. Inbred strains when crossed with non-inbred, produced 

 vigorous, rapidly growing Fi plants. — D. F. Jones. 



