442 EXPERIMENT STATION RECORD. [Vol. 36 



Rules and regulations of the Secretary of Agriculture under the United 

 States Grain Standards Act of August 11, 1916, D. F. Houston {U. S. Dept. 

 Agr., Office Sec. Circ. 70 (1916), pp. 5//).— This circular contains the rules and 

 regulations of the Secretary of Agriculture pertaining to the United States 

 Grain Standards Act of August 11, 1916. The text of the act (E. S. R., 35, 

 p. 308) is included. 



Clover and grass seed inspected in 1914, O. P. Smith {Maryland Sta. Bui. 

 197 (1916), pp. 58). — Seed inspections of red clover, crimson clover, sweet 

 clovers, alfalfa, alsike and white clovers, hairy vetch, timothy, millets, and 

 orchard grass for 1914 are reported. 



A table of tolerance for purity variations is given and an explanation made 

 of its calculation and use. 



Anatomical determination of the seeds of Cuscuta trifolii and C. suave- 

 olens, J. Bebnatsky (Landw. Vers. Stat., 88 (1916), No. 1-2, pp. 1-11, figs. 7).— 

 The results are reported of an anatomical study of the seeds of two species of 

 dodder, conducted to determine the cause of the so-called limy or calcareous 

 condition of some seeds, and to discover a method for the recognition of the 

 species of such seeds in doubtful cases. 



It is stated that the limy seeds show no indication of parasitism, but that 

 they are seeds which, having failed of fertilization, dry up in the condition or 

 stage of development reached before the time of fertilization arrives. The 

 anatomical differences determined were as follows: In limy .seeds of C. trifolii 

 the proportion of the thickness to the length was as 1 : 1.4, and in those of 

 C. suaveolens as from about 1 : 1.6-1 : 1.9. The palisade cells in the limy seeds 

 of C. trifolii were from 6 to 8 m in the first row, about 8 m in the second, and 

 only near the hilum perceptibly more than 8 /x in length, as compared with 

 from 8 to 16 M in the first row and 10 to 30 fi and over in the second row in 

 similar seeds of C. suaveolens. The starch grains of the limy seeds did not 

 prove of value for a systematic classification. 



A new weed, G. Quinn and H. W. Andrew (Jour. Dept. Agr. So. Aust., 19 

 (1915), No. 4, pp. S80-38S, figs. 3). — The appearance of the cruciferous weed 

 Carrichtera annua is reported in a limited area of South Australia. A botani- 

 cal description of the plant is given. 



Some points in fan weed control (Montana^ Sta. Circ. 12, Sup. (1915), pp. 

 .^). — This circular supplements a publication previously noted (E. S. R., 28, 

 p. 46), dealing with fan weed (Thlaspi arvense), its introduction into new 

 territory, and its control. 



HORTICTTITTTRE. 



[Horticultural investigations in Alaska], C. C. Geobgeson, J. P. Andebson 

 ET AL. (Alaska Stas. Rpt. 1915, pp. 8-13, 15, 22, 29-32, 33-39, 50-52, 67, 68, 76, 

 pis. 5). — The horticultural work at the Sitka Station and at the branch stations 

 was continued along lines previously noted (E. S. R., 33, p. 637). 



The numerous crosses between cultivated strawberries and the wild species 

 of Alaska have yielded many plants of sufficient merit to be retained for further 

 test and experiment. Some of these hybrids with the coast species as one of 

 the parents have been found to be hardy at both Rampart and Fairbanks sta- 

 tions, but hybrids that have the interior species for one of their parents are 

 expected to be better adapted for that region than are those now under test. 

 The raspberry -salmonberry crosses made several years ago (E. S. R.. 28, p. 435) 

 have yielded plants of no value, and this breeding work has been discontinued. 

 Some hybrids between the raspberry and the thimbleberry (Rubus parviflorus) 

 and between a native crab apple and early summer apples fruiting at the Sitka 



