366 HOW CROPS FEED. 
wheat soils of Mid Lothian, analyzed by Dr. Anderson. 
The air-dry surface-soil contained in 100 parts: 
PRCA: 5 oss aise oases dle'a wiele ou c plnea mle eet eae 71.552 
ALOMINA,. 055 2 sise sos nieve o.06 cela exc oe 6.935 
Peroxide of lron..:.,....2....cs2«.sieeeeeeee 5.173 
DAMNG ys oe vis oo ont weed Bede a tdanlee Oe 1.229 
Magnesia. «5.6. oh ak aids saan se beeen 1.082 
Potash soi: sac cas deccnsae octet ae oe eee 0.354 * 
SOG goin so dep ea ons vie de’ sa-cine w oi apie lee 0.4383 
Sulphuric acid... .\.. 2.0. .00k uae sce dn ee en een 0.044 
Phosphoric acid... 0500 .+50. 0 see aes cee 0.480 
CUIGFIIB oes Scr cle 6 0c dn Sadie s 4 ould Be traces 
Organie matter... 2... .-.02c0>.008 550 5h 10.198 
WIE. oc Si wau's »aks sc ckee sedeee sued sce es aan 2.684 
100.116 
We observe that lime, potash, and sulphuric acid, are 
much less abundant than in the soil from the Zuider Zee. 
The quantity of phosphoric acid is about the same. The 
amount of sulphuric acid is but one-twentieth that in the 
Holland soil, and is accordingly enough for 15 good bar- 
ley crops. 
Lastly may be instanced the author’s analysis of a soil 
from the Upper Palatinate, which was characterized by 
Dr. Sendtner, who collected it, as “ the most sterile soil in 
Bavaria.” 
PRE OR es ncaliie ois Sind o 2.0 an.len Sede Oye ae 0.585 
Organic matter. ...<).2. 260052464500 ss ake 1.850 
LTC: in An I Co 0.016 
Oxide of iron and alumina. .>.5....00% sas) eee 1.640 
Lime). pies cn'ss edie o-wiand eed sere wl ce 0.096 
Magnesia... .. . oes cee - cies sa se nlsnuens 5 trace 
Carbonie 9eid .. ho... soa 5 2s ae trace 
Phosphoric acid. . 2... .200 500.5 nse’ aoe trace 
Chlorine... oo. csc od soak os Cam's ee ae trace 
AE a he Ss ake topes ay a none 
Quartz and insoluble silicates...'.......e0.sesssene 95. 863 
100.000 
Here we note the absence in weighable quantity of 
magnesia and phosphoric acid, while potash could not even 
és in 
