HOETICULTURE. 835 



Ztg., 63 {19U), No. 10, pp. 562-^68) .—Although there was some similarity ob- 

 tained between the results of the original seeds and those of the next genera- 

 tion, the uniformity was not close enough for the author to determine a factor 

 of inheritance. 



The tillering of wheat, L. J. Wild {Jour. Agr. [New Zeal.], 9 {19U), No. 1, 

 pp. 31, 32). — This article gives results of an experiment that show a slight 

 increase in the tillering of wheat by a treatment of the seed with a 3 per cent 

 solution of sulphate or nitrate of ammonia. 



Impurities of agricultural seed, with a description of commonly occur- 

 ring weed seeds and a guide to their identification, S. T. Parkinson and G. 

 Smith (Ashford, England, and Bishopsgate, Canada, 191^, pp. 105, pis. 38). — 

 This book discusses the topics of the harm done by weeds, introduction of new 

 kinds of weeds to the country, seeds fi*om foreign countries, weeds common in 

 samples, and methods of testing, with a key for the identification of the seed 

 described in this book, and descriptions and photographs of 150 common weed 

 seeds. 



Seed testing, A. Atkinson and B. W. Whitlock (Montana Sta. Circ. 38 

 (191-i), pp. 11, figs. 4)- — This circular describes methods of testing seeds and 

 gives descriptions of seeds of six common weeds. 



Seed control stations on the Continent (Jour. Bd. Agr. [London], 1914, Aug., 

 Sup. 13, pp. 88, figs. 4^ pl^- H)- — This describes the methods and work of the 

 seed control stations at Copenhagen, Hamburg, Wageningen, Ziirich, Budapest, 

 Vienna, Munich, Breslau, and Berlin, and gives in an appendix results of some 

 of the tests made at these stations. 



Control of Cuscuta by devitalization of the seed, M. Bresaola (8taz. Sper. 

 Agr. Ital, 46 (1913), No. 2, pp. 89-136, pU. 3).— Data are given showing the 

 effect of subjecting several species of seeds used as host to high temperatures 

 for varying periods of time and to a sulphuric acid bath. 



Experiments in spraying to destroy dandelions, J. E. Howitt (Ann. Rpt. 

 Ontario Agr. Col. and Expt. Farm, 39 (1913), pp. 43, 44). — This notes the suc- 

 cessful spraying of dandelions on lawns with a 20 per cent solution of iron 

 sulphate. Six applications seemed necessary. Ninety per cent of the dandelions 

 are said to have been killed the first season with a general improvement in the 

 thriftiness of the grass. 



HORTICULTTJUE. 



[Horticultural investigations at the Truckee-Carson Experiment Farm], 

 F. B. Headley (U. 8. Dept. Agr., Bur. Plant Indus., Work Truckee-Carson 

 Expt. Farm, 1913, pp. 8-10, fig. 1). — ^Tabular data are given on variety tests of 

 tomatoes and onions conducted at the farm in 1913, together with a list of the 

 trees and shrubs which have thus far been found to be well-adapted to the 

 Truckee-Carson reclamation project. 



[Horticultural investigations at the Wisconsin Station] (Wisconsin Sta. 

 Bui. 240 (1914), pp. 53, 54). — A brief statement of progress in the station's 

 cranberry investigations, together with a note on the experimental forcing of 

 rhubarb. 



Severe winter weather and severe June frosts did considerable damage to the 

 cranberry bog. The observations made at the station indicate that sanding the 

 bog will have little value as a means of frost protection when the temperature 

 falls below 26 or 28° F. The application of rock phosphate on bare peat bog pro- 

 duced marked improvement in vine growth and crop yield, but also greatly stimu- 

 lated the growth of grass. Nitrates and potash caused a material increase in 

 the size of the fruit, together with improved color. In accordance with previous 



