Concord Grape. Currants. Blachberriea. 



100.00 100.00 100.00 



As tliese results may be of iuterest to fruit cultivators, ou account 

 of the information they give concerning the special requirements of 

 some prominent fruits in soil constituents, they are published here in 

 advance. A more detailed record of this work, which is steadily 

 progressing, has to be deferred for obvious reasons to the next 

 annual report. 



ANALYSIS OF WEEDS. 



317. SORREL. 



(rumex acetosella.) 



The plants for the examination were collected during the month of 

 June, when in blossom. The fresh plant contained in one hundred 

 parts : 



Moisture, 87.07 



Dry matter 11.93 



Mineral constituents, 1.11 



(including some earthy matter, 0.158) 



The fresh plant contains no free volatile acid — as acetic acid, etc. 

 The strong acid reaction and taste of the juice of the plant is largely, 

 if not exclusively, due to the presence of acid combinations of 

 oxalic acid with the alkalies, potassa and soda. 



The soluble portion of the ash constituents contains the subsequent 

 substances in the following relative proportions : 



Potassium oxide, 19.35 per cent. 



Sodium oxide, 10.79 " " 



Calcium oxide, 47.53 " " 



Magnesium oxide, ^8.99 " " 

 Ferric oxide, 2.55 " " 



Phosphoric acid, 10.79 " " 



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