138 Bisulphide of Garhon as a Solvent. 



40.54 per cent, of oil. The variation between the amounts 

 obtained from the five samples is to be accounted for by the 

 fact that two varieties of rape seed were tested in the winter 

 (Brassica Ncqjus), and also the summer rape (Gampestris). 



Some analj^ses of rape seed grown in Holstein give from 

 40 to 70 per cent, of oil. 



A sample of long radish seed gave 39 per cent, of oil. 

 This is less than the quantity given in Musprat's table. 



American pea-nuts (Arachis hypoqcea) having 34.95 per 

 cent, of husk gave 37.97 per cent, of oil. 



Colonial grown pea-nuts having 30 per cent, of husks- 

 gave 40.42 per cent, of oil. 



The seeds of New Zealand flax (Phorinium tenax) gave 

 16 per cent, of oil. 



Other experiments were made, but these are suflicient to 

 show the value to the manufacturer of the process which 

 may be summarised as given by Wagner when comparing- 

 the solvent process with the ordinary oil-mill as follows : 

 First, from 10 to 12 per cent, more oil is obtained from the 

 same quantity of seed ; second, the cost of plant is much 

 less ; third, the amount of labour required is less ; fourth, 

 the meal is equal to the cake for cattle-food ; and, lastly, 

 that seed containing only 6 to 8 per cent, of oil can be 

 profitably treated by this system, while it cannot be by 

 any other process. 



To the agriculturist there can be no doubt that the 

 establishment of oil-works would be a great boon ; and with 

 works established on the solvent process and seeds giving 

 the quantities of oil I have stated they could obtain as. 

 good, and, I believe, a better price for these crops of 

 oleaginous seeds than they now obtain per acre for wheat ; 

 besides obtaining fr-om the works the meal, as food, for their 

 cattle. 



The rich nitrogenous constituents of linseed meal give it 

 a feeding value of 3s. per cwt. more than maize meal, the 

 food with which it would enter into competition in this 

 colony. 



The residual meal of seeds, not fit for feeding purposes, 

 would be returned to the soil as manure. 



