lf>-'0] SOILS FERTILIZERS. 513 



Iiij^i'tlier coviM-ing al)out 90 per cent of the county. Inchulinf? stoep broken 

 liUid, 12 soil types of ;") series ;ire nuipped, of whicli tlie Aniurillo tine sandy 

 loam and clay loam cover 39.1 and 29.1 per cent of tlie area, respectively, 

 uliile tlie Uiclitield clay louni covers 17.0 per cent. 



Soil survey of Accoinae and Xortlianiptoii (motilities, Va., E. H. Stkvens 

 (U. S. Dept. Afjr., Adr. Sheets Field Opei: Bur. Soiln, 1917, pp. 62, pis. J,, fig. 1, 

 map 1). — This survey deals with the soils of an area of 436,480 acres lying in 

 the Coastal Plain region and coiiiDrising two counties in extreme eastern Vir- 

 ginia, the topography of which is prevailingly level, varying from low flat 

 foreland country to gently undulating ui»land plain. Drainage is fairly good 

 in the uplands and the forelands of Northampton (bounty are well drained, as 

 well as the almost entire seaward side of the area. 



Including tidal marsh, coastal beach, swami), and dunesand, 17 soil types 

 of r> .series are mapped, of v.hicli the Sassafras sandy loam and tine sandy loam 

 are the most important classified type.s. 



Tlie inipoftance of geolofjy for the study of af;ricultural aud forest soils, 

 11. NIKI..A.S (\ntunr. Ztsehr. Foist n. Luiulic, 18 {1920), No. 1-2, pp. 22-35).^ 

 Geological and soil surveys of Bavaria are briefly described, and an argument 

 is presented for a soil survey of Germany. 



Agrouoniic study of tlie soils of Morocco, ^l. and L. Kigotaru (Ann. .S'c/. 

 Agron. Frani\ et FArangerc, 4. scr., 6 (1017), No. 4-6, pp. 197-215, figs. 2).— 

 Analyses of samples representative of the soils of the different parts of 

 Morocco are reported and discus.sed with reference to their mechanical and 

 chemical composition and relative fertility. 



The soils vary widely in both mechanical and chemical composition, particu- 

 larly witli reference to the latter. Rome soils are deficient in all the main 

 fertility constituents, .scmie in only one or two, and some are well supplied with 

 all. It is noted that the soils contain a relatively high proportion of either tine 

 or coarse sand, or hftth, and in some ca.ses considerable clay, especially in the 

 region between Rabat and Fez. In the Chaouia region' the soils are a little 

 better supplied with organic matter. Tlie principal chemical deficiencies are 

 apparently phosphoric acid and nitrogen. 



Helatious botwoen soil reaction, the appearance of plant diseases, and 

 tli«* development of certain plants, A. Stxttzer {Fiihlhig's Landw. Ztg., 66 

 (1917), No. 5-6, pp. 1S0-1S2). — Observations at different places and times are 

 cited as showing a close relation between soil reaction and the health and 

 growth of plants. 



The influence of soil and fertilization on diseases of plants, P. Etikkx- 

 BEuo {Fiililing's Tjnidw. Ztg., 68 {1919), No. 21-22. pp. JfO 1- J, 1 2). —TMs is a lec- 

 ture given at the University of Giittingeu on the injurious Influence of soils 

 in dirterent conditions on plants, and on the direct and indirect Injurious 

 Influence of fertilizers on plants. Attention is drawn to the action of acid, 

 raw, and sick soils, and of soils which have become physically and chemically 

 unfit through the action of different fertilizers. 



Sonic investigations on the restoration to productivity of soils in the 

 vicinity of zinc roasters, F. T. Ullrtcii and W. C. Trewaktiia {Hul. State 

 Norm. School, PlntteriUe, Wis., 17 [1919], No. 3, pp. 21, figs. 9).— Pot and field 

 experiments with oats and corn, conducted In the lead and zinc regions of 

 southwestern Wisconsin and northwestern Illinois to determine means for the 

 reclamation of soils thought to be Injured by the gases from zinc roasters, 

 are reported. 



The conclusion is drawn that among the elements to be added to this soil 

 to bring the best response in crop growth are calcium, phosphorus, and 

 nitrogen. The jar cultures indicated that potassium Is a corrective, but the 



