AGRICULTURAL BOTANY. 323 



The American fertilizer handbook, 1914 (Philadelphia, 1914, PP- 456, figs. 

 50). — This handbook contains as usual directories of fertilizer manufacturers 

 and allied fertilizer trades, cotton-seed oil mills, and packers and renderers, 

 as well as special articles, statistics, and miscellaneous information relating to 

 the fertilizer industry. Among the more important articles included are The 

 Sulphuric Acid Industry, by A. M. Fairlie; Tables for Making Fertilizer 

 Formulae, by W. D. Rhea; Digest of State Fertilizer Laws; Available Phos- 

 phates by Furnace Treatment, by J. H. Payne; Available Nitrogen in Com- 

 pounds, by E. P. Verner; Present State of the Cyanamid Industry, by E. J. 

 Pranke; The World-Wide Search for Potash, by H. Wilson; Phosphate Rock 

 Production in 1912, 191.3, by W. C. Phalen ; Florida Phosphate Rock, 1913, by 

 E. II. Sellards; Mining of Florida Pebble Phosphate Rock, by T. M. Peters; 

 The Western Phosphate Deposits, by M. S. Duffield ; The Products of Cotton 

 See<l, by T. C. Law; The I'se of Packing House By-Products, by J. B. Sardy ; 

 Tankage and Dried Blood, by J. W. Turrentine; and The Western Animal 

 Ammoniate Market, by J. B. Sardy. 



Commercial fertilizers, W. J. Jones, jr., et al. {Indiana Sta. Bui. 174 {1914), 

 pp. 477-504, fig. 1). — This is a detailed report of inspection of fertilizers in 

 Indiana during 1913 including analyses of 1,204 samples. 



The results show that the amount of fertilizers sold was greater and the 

 quality better in 1913 than in any previous year. It is estimated that the 

 consumption of fertilizers in the State in that year was 193,899 tons, valued at 

 $4,516,404. 



Analyses of fertilizers, fall season, 1913, B. W. Kilgobe et al. {Bui. N. C 

 Dcpt. Agr., 35 {1914), ^o. 3, pp. 93). — This bulletin contains analyses and valu- 

 ations of fertilizers collected by the fertilizer inspectors of the state depart- 

 ment of agriculture during the fall of 1913. as well as a list of brands of fer- 

 tilizers registered for sale during the fall season. 



AGRICULTURAL BOTANY. 



Lectures in plant physiology, L. Josx {Vorlcsungcn iiber Pflanzcnphysiologie. 

 Jena, 1913, 3. ed., pp. XVI-\-760, pis. 2, figs. i95).— This is a third edition of the 

 author's lectures on plant physiology (E. S. R., 19, p. 529) in which the subject 

 matter is brought up to date and the references to literature given to January, 

 1913, with occasional later citations. 



The general plan of the work is not changed except in the matter of citing 

 literature. By means of a system of abbreviations and placing the citations at 

 the bottom of the page, considerable space has been gained. 



Catalytic effects of light in germinating seeds, E. Lehmann (Biochem. 

 Ztschr., 50 {1913), No. 5-6, pp. 388-392). — It is stated that the germination of 

 seeds of Epilobium Mrsutum, moistened with distilled water and kept in dark- 

 ness at from 22 to 24° C, was in each case increased or hastened by the addi- 

 tion of papayotin, trypsin, or muriatic acid in a way analogous to the influence 

 of light, which is held to act catalytically upon albumen in the seeds. 



Self- warming by plants in Dewar flasks, H. iloLiscH {Ztschr. Bot., 6 

 {1914), No. 4, pp. 305-335, figs. 3). — Tests made by the employment of Dewar 

 flasks on the development of heat by flowers, leaves, or fruits of several dicoty- 

 ledonous plants, also with mosses, lichens, fungi, and algae, are given in tabular 

 detail. 



Most leaves and flowers develop considerable heat, some however much less. 

 Mosses, algae, and a number of common fruits develop little heat as a rule. 

 Lichens show considerable differences in this respect, as do some fungi. 

 57707°— No. 4—14 3 



