FERTILIZER CONTROL STATION. 375 



Nearly one-third of this sugar, however, is glucose, which has a 

 lower sweetening power than granulated sugar, and when we allow 

 for this fact, the cost of sugar in the better grades of molasses must 

 be nearly- as large with present prices as when bought in the form of 

 pure granulated sugar, 



A. L. Moore, Esq , of Limerick left at the Station a sample of 

 molasses which he suspected of being inferior in quality. The fol- 

 lowing statement was sent to Mr. Moore : "AVe have determined the 

 sucrose (cane sugar) and glucose in the sample of molasses which 

 you left at the Station. The results are as follows : 



Sucrose. Glucose. Total Sugar. 



20 per cent. 33 per cent. 53 per cent. 



This is a poor molasses. It contains too small a percentage of to- 

 tal sugar, and too large a part of this sugar is glucose. In good 

 molasses the glucose should constitute considerabl}^ less than one- 

 half the total suf^ar. By reference to a former bulletin of the Sta- 

 tion, showing the sugar in eight samples, vou can see that the mo- 

 lasses you left with us is poor in comparison." 



INSECTICIDES. 



Insecticides have come to be very useful to the farmer in protect- 

 ing his crops from the ravages of insects, and a knowledge of the 

 composition of those offered for sale is a matter of considerable im- 

 portance. Three of these preparations have been examined by the 

 Station, viz : 



Paris Green, London Purple, Hammond's Slug Shot. 



In all of these the poisonous ingredient must be arsenious acid 

 (oxide) or its compounds, so that in each case the value of the prep- 

 aration as an insecticide is determined approximately by the amount 

 of arsenious acid present, though in one instance the presence of a 

 small amount of "dead oil" may add to the value of the prepara- 

 tion as a preventive. The following are the results of the analyses 

 of the above named materials : 



