AGEICULTURAL BOTANY. 219 



The trade in ootton-seed meal, E. H. Jenkins (Connecticut State Sta. Bui. 

 170, pp. 4)- — Tlie plan worked out by the station, by which the dealer and con- 

 sumer of cotton-seodjmeal may be assured of its quality, is described. 



Experiments with gas purification residue as a weed killer, insecticide, 

 and nitrcg-enous fertilizer, H. von Feilitzen (Fiihling's Landw. Ztg., 61 

 (1912), No. 8, pp. 285-29 'f). — The results were not very favorable to the use 

 of the material for the purposes named. 



Tannery refuse as a fertilizer^ H. W. IIealy (Rural New Yorker, 71 (1912), 

 Nos. l/lol, p. 622; J/152, p. 643). — The method- of preparation, nature, and fer- 

 tilizing value of tannery refuse, ashes, and liquid are discussed. The first two 

 are rich in lime, the latter is acid. The refuse contains from 0.75 to 2 per cent 

 of nitrogen. The ashes contain in addition to from 30 to 50 per cent lime, 

 fioin 0.75 to 1.5 iter cent potash and 0.5 per cent phosphoric acid. Timnery 

 liquids are of no fertilizing value until neutralized with lime and in some cases 

 allowed to putrefy. Successful practical experiments in the use of refuse and 

 ashes are referred to. 



Refuse disposal, Toronto, Ont. (Engin. News, 67 (1912), No. 8, pp. 825-328; 

 Engin. and Contract., 37 (1912), Nos. 11, pp. 293-296; 13, pp. 351, 352; 15, pp. 

 /il7-.'il9). — This is a condensation of an extended report by R. Hering and 

 J. II. Gregory, and deals with 2 methods of disposal. "(1) the incineration 

 of garbage mixed with other aaid more combustible refuse, with no utilization of 

 the heat of combustion, and (2) the treatment of garbage alone by the reduction 

 process for the recovery of grease and of tankage for fertilizer base, and with 

 the separate incineration of combustible refuse. The low price at which hydro- 

 electric power is available in Toronto turned the scale in favor of the second 

 alternative. If the salable portions of the combustible refuse were sorted out 

 and sold and only the remainder burned, the estimates indicate a small profit 

 from the combined operations of the reduction works and incinerating plants; 

 otherwise there would be a slight yearly expense." 



Analyses of fertilizers, fall season, 1911, B. W. Kilgore et al. (Bui. N. C. 

 Dept. Agr., 33 (1912), No. 3, pp. 06). — This bulletin contains analyses of fertil- 

 izers collected by the fertilizer inspectors of the North Carolina state depart- 

 ment of agriculture during the fall of 1911, as well as a list of brands of fer- 

 tilizers registered for sale during the season 1911-12. 



Tabulated analyses of commercial fertilizers, J. Tomlinson (Tenn. Dept. 

 Ayr. Pert. Bui. 1911, p^). 50). — Analyses and valuations of fertilizers offered for 

 sale in Tennessee during 1911 are reported. The text of the state fertilizer 

 law and a schedule of current prices of fertilizing materials are also given. 

 It is stated that 68.971 tons of fertilizers were sold in Tennessee during 1911 

 as compared with .58,612 tons in 1910. 



Analyses of licensed commercial fertilizers, 1912, F. W. Woll (Wisconsin 

 8ta. Circ. Inform. 33, pp. 12). — This circular gives a list and guaranties of 

 fertilizers licensed for sale in Wisconsin during the year, analyses of samples 

 submitted by the manufacturers and collected by the station inspectors, and ex- 

 l)lanations of terms used in statements of analyses of fertilizers and in discus- 

 sion of the subject of soil fertility. 



AaRICTJLTUSAL BOTANY. 



Plant physiology, W. Palladin (Pflanzenphysiologie. Berlin, 1911, pp. 

 VI+310, figs. 180). — This is a German edition, revised and brought up to date, 

 from the sixth Russian edition of the author's work on plant physiology. It 

 treats extensively of the chemistry of physiological processes. 



Preliminary announcements of new findings in germination studies with 

 Chloris ciliata, G. Gassnep. (Ber. Deut. Bot. Gesell., 29 (1911), No. 10, pp. 



