332 Mr. Sorby on the Amount of Sulphur and 



Name of Plant, &c. 



Sulphur. 



Phosphorus. 



Swede turnip {Brassica oleracea) 



Ditto, tops 



Rape {B. oleifera) 



Drura-head cabbage {B. campestris) 



Wheat plant tnlirc{Tri<icum vulgat-e) when just gone "1 



out of flower J 



Ditto 



Ear of wheat when the gi-ain was formed, but milky... 



Straw from the above 



Ear of wheat when ripe 



Straw from the above 



Red wheat 



Ditto, straw 



White wheat from the same field as the above red 



Ditto, straw 



Wheat (another sample) 



Ditto, chaff 



Very fine bai'ley {Hordeum distichum) 



Ditto, straw 



Rather poor barley 



Ditto, straw 



Barley plant when in flower 



Oat plant {Avena saliva) when just coming into flower 



Ditto in flower 



Green oats 



Straw of ditto 



Black tartarian oats 



Straw of ditto 



White oats 



Straw of ditto 



White oats (another sample) 



Straw of ditto 



Rye ears {Secale cereale) when young 



Straw of ditto 



Rve 



Bean plant {Viciafaba) in flower 



Beans 



Ditto, straw 



Peas {Pisjon sativum) 



Ditto, straw 



Fine hops (Humulus lujmlits) 



Bind of ditto 



•435 

 •458 

 •448 

 •431 



•151 



•170 



•075 



•240 



•090 



•213 



•070 



•293 



•054 



•207 



■051 



•091 



•066 



•390 



•040 



•191 



•313 



•226 



•189 



•125 



•329 



•080 



•271 



•090 



•401 



•074 



•195 



•073 



•099 



•051 



•045 



■071 



•148 



•158 



•214 



•127 



•091 



•172 

 •250 

 •233 



•267 



•248 



•140 

 •271 

 •132 

 •336 

 •043 

 •363 

 •079 

 •366 

 •112 

 •410 

 •252 

 •498 

 •087 

 ■367 

 •065 

 •236 

 •194 

 •189 

 •317 

 •128 

 •381 



•no 



•334 

 •153 

 •382 

 •057 

 •076 

 •153 

 •160 

 •258 

 •600 

 •233 

 •206 

 •076 

 •574 

 •138 



From the above analyses it will be seen bow very much 

 the amounts vary in some cases, whei'eas in others tliey are 

 pretty constant. This variation may probably be occasioned 

 by that of the amount of phosphates and sulphates in the 

 soils. I have observed as a general rule, that the finer the 

 quality of the specimen the larger the proportions of sulphur 

 and phosphorus present; though in the case of lucern, in 

 which the phosphorus varies as much as in any crop of which 

 I have analysed a sufficient number of specimens to be able 

 to give an opinion, all the samples were growing luxuriantly. 

 It may be presumed that when the amounts vary so much. 



