846 



Arizona Station, First and Second Annual Reports, 1890 and 1891 



(pp. 3 and 7). 



Brief statements regarding the organization and work of the sta- 

 tion, and financial reports for the fiscal years ending June 30, 1890 

 and 1891. 



Arizona Station, Bulletin No. 5, April, 1892 (pp. 6). 



CA5fAiGi{E, F. A. GiLLEY, M. S. — A preliminary statement regard- 

 ing investigations in progress at the station with a view to determine 

 whether canaigre {Rume.v hymenosrpalus) can be profitably cultivated 

 for the tannin which its roots contain. 



Arizona Station, Bulletin No. 6, April, 1892 (pp. 8). 



Mesa soil and Colorado River water, (\ B. Collingwood, 

 M. S. — Mechanical and chemical analyses of a mesa soil near Yuma, 

 Arizona, are tabulated. "The soil is warm, easily drained, free from 

 alkali, and «l('rici«'nt in hnnins, ]»ut not deficient in ]>lant food. If su])- 

 plied with active fertilizing material and organic matter it is especially 

 adapted to early fruits and vegetables." 



Clieniical analy.'^es of the sediment from .samples of Colorado River 

 water taken daily for 7 month.s (August to February) are tabulated, 

 together with calculations of the amount and value of the fertilizing 

 materials (le])osited by the river. The average number of pounds of 

 material depo.sitcd by 1 acre incli (L'7,152 gallons) of water during each 

 of the 7 months, was as follows: Total residiu' 818, clay L'04, lime 58, 

 phosphoric acid 1.3-, available potash 1.1*0. and nitrogen 0.71. A com- 

 parison of the amounts of sediment deposited by different rivers, 

 exi»resse<l in terms of the ratio of solids to weight of water, is stated 

 as follows: Colorado laverageof 7 months) 1 :L*77; Mississippi. 1 :1500; 

 Nile, 1 : 1900; I>anul»e, 1 :.30riO. The clay and silt deposite<l improve 

 the texture of the soil, the plant Jo(»d is largely available, and alfalfa 

 can be grown to supply organic matter. In this way, with the aid of 

 irrigation, the mesa soils can be made productive. The station will 

 continue its examination of the irrigation waters of the State. 



Connecticut State Station, Bulletin No. Ill, March. 1892 (pp. 20). 



Common fungous diseases and their treatment, W. C. 

 Sturgis, Ph. D. (plates 4, fig. 1). — Popular accounts of the following 

 diseases, with suggestions for treatment: Apple scsib [Fiusidadium den 

 drttictitn), ripe or bitter rot of apples ((r/o'o.vj^orfMw /rMc^j/7fwuwj), leaf 

 blight or spot of pears and quinces {Enfo})tosporium maculatum), peach 

 yellows, black knot of the plum and cherry {Ploirrightia 7)wrbosa), 

 brown rot of stone fruits [Monilia fmoticjena)^ black rot, brown rot or 



