374 PROCEEDINGS OF THE SCIENTIFIC ASSOCIATION. 



immediately sunk to 150 fahrenheit, nor could the skill of 

 the fireman raise the heat higher, as long as the " Shower" 

 was in action. This mechanism, including the Fanner blast, 

 was worked successfully on a practical scale before Lord 

 Harris, the Governor of Trinidad, and several Members of 

 the Legislative Council, in 1849, and those present satisfied 

 themselves, ihat while the Shower was in full action and the 

 evaporation at its quickest, the syrup could be handled with 

 impunity. The importance of using cane-juice or syrup in a 

 state of perfect purity is so great, that you will perhaps 

 excuse me for adding a few words on this subject, and recom- 

 mending to your careful examination an automatic or self- 

 acting process for clarifying and cleansing cane-juice or other 

 materials in the earlier stage of evaporation. It was borrowed 

 originally from Cuba, and subsequently patented in Trinidad 

 and Demerara. 



Tuesday, 8th June, 18G0. 



R. J. Lechmere Guppy, F.L.S., F.G. S., &c, President, m 



the Chair. 



In the absence of the Secretary, Dr. Knaggs was requested 

 to act in his place. 



The following Donations were announced : 



" Journal of the Society of Arts," Nos. 834839. Present- 

 ed by the Colonial GovernmerU. 



" Scientific Opinion," Nos. 1 20. Presented by the Pre- 

 sident. 



