730 EXPERIMENT STATION EECORD. 



These types bred true notwithstanding their close proximity in the field. 

 Diixerences were noted, but becraiise they bloomed at different times the types 

 seemed to remain distinct, although there was some evidence that occasional 

 hybrids might occur under natural conditions. In view of these variations, the 

 author believes that the genus needs revision based upon experimental in- 

 vestigation. 



Segreg-ation of characters in first generation hybrids from stable species 

 of CEnothera, G, F. Atkinson (Ahs. in Science, n. ser., 39 (1914), No. 998, p. 

 256). — Reciprocal crosses have been made of two wild species, (E. nutans and 

 a^. pycnocarpa, which have been cultivated through two generations. These 

 two species are said to differ in a number of clearly observable characters and 

 the reciprocal crosses have given rise to hybrids which show segregation of 

 characters in the first generation. A number of the characters are contrast 

 characters that behave as unit characters in segregation into twin and triple 

 first generation hybrids. 



Some correlation phenomena in hybrids, Tine Tammes {K. Akad. Wetensch. 

 Amsterdam, Proc. Sect. Sci., 15 (1913), pt. 2, pp. 1004-1 01 4). —This report has 

 already been noted from another source (E. S. R., 29, p. 424). 



Bud variations in Solanum, E. Heckel and C. Verne (Bui. Soc. Nat. Agr. 

 France, 73 {1013), No. 8, pp. 612-628). — The substance of this contribution has 

 already been noted from another source (E. S. R., 29, p. 829). 



Symbiosis and tuberization in potato, J. INIagrou (Gompt. Rend. Acad. Sci. 

 [Paris], 158 (1914), No. 1, pp. 50-53; ahs. in Rev. Sci. [Paris], 52 (1914), I, No. 

 S, p. 93). — Following up the findings and suggestions of Bernard (E. S. R., 27, 

 p. 224), the author made a study of the influence of fungi living in relations of 

 commensalism in potato plants as related to the development thereof. From 

 this, it is claimed, some evidence was secured regarding the alleged importance 

 of fungi to tuber development. 



Rejuvenescence of the potato, A. Sartory, J. Gratiot and F. Thi:^baut 

 (Gompt. Rend. Acad. Sci. [Paris], 158 (1914), No. 1, pp. 45~47; ahs. in Rev. 

 Sci. [Paris], 52 (1914), I, No. 3, p. 93).— Taking the view that the potato has 

 degenerated in consequence of its long continued asexual reproduction, and 

 regarding with little hope certain efforts at rapid improvement of related wild 

 forms as noted by Heckel and Verne (E. S. R., 29, p. 829), the authors attempted 

 to secure plants breeding persistently after production from the seed by em- 

 ployment of the supposedly stimulating effect exerted on tubers by certain fungi 

 as noted by Bernard (E. S. R., 27, p. 224). The results obtained in 1912 are 

 said to have been encouraging as regards size, vigor, and health. Those of 

 1913 are claimed to have been still more so, leading to hopes of the complete 

 practical success ultimately of the methods employed. 



Inventory of seeds and plants imported by the Office of Foreign Seed and 

 Plant Introduction during- the period from April 1 to June 30, 1912 (Z7. 8. 

 Dept. Agr., Bur. Plant Indus. Inventory No. 31 (1914), PP- 98). — This gives a 

 list, together with economic notes, on miscellaneous importations of seeds and 

 plants received, to the number of about 800, during the period indicated. 



FIELD CROPS. 



Report of the Mandalay Agricultural Station, 1911-12, E. Thompstone 

 (Dept. Agr, Burma, Rpt. Mandalay Agr. Sta., 1911-12, pp. 41+4). — This report 

 gives results of manurial and cultural experiments with rice and variety tests 

 with rice and other crops. 



In comparing 240 and 480 lbs. bone meal, 60 lbs. saltiDeter, 60 lbs. nitrate of 

 soda, 200 and 400 lbs. cotton cake, and 12,000 lbs. barnyard manure per acre, the 



