Analysis of Sugar Cane. 



517 



It is quite clear that the substance, the presence of which 

 gives rise to fermentation in the cane-juice loses this delete- 

 rious property by simple exposure to the boiling tempera- 

 ture in 212° F. But further, Peligot found that not only 

 the cane-juice that had been raised to that temperature 

 shewed no disposition to ferment, but that the cane itself, 

 after having been exposed to the same heat in a stove, 

 yielded its sugar to either hot or cold water without a trace 

 of molasses. The principle is one of easy application, re- 

 quiring only that a boiler be placed immediately under the 

 rolling mill, into which cane-juice and cane-trash may be 

 allowed to fall in the first instance, leaving a spout at one 

 extremity from which the cane-juice may be drawn and 

 thence carried to the boilers, while the cane-trash is brought 

 to a state in which it will yield much of its remaining sac- 

 charine matter to fresh pressure, without being liable to 

 fermentation. 



Extract of a Letter from Dr. Lund, on the Brazilian Ant. 



In sending you the promised Notes of the habits of those species 

 of ants which I have had an opportunity of observing in Brazils, I 

 take the liberty to add, that if you wish to make them public, you 

 may be pleased to observe, that they were not intended to see the 

 light, any more than other observations I may have made during my 

 sojourn in this country, at least until my own return to Europe 

 enabled me to render them into a more perfect form. 



It is a fact which has not escaped the notice of the travellers who 

 have visited the tropical parts of South America, that the families of 

 ants which there present themselves are much more numerous, as 

 well as regards species as individuals, than with us. Notwithstand- 

 ing Brazils being well-known, its extraordinary entomological riches 

 have convinced me, that the ants there form a much greater propor- 

 tion to other insects than with us. Every where you turn your 

 eyes in that rich country, you meet with these animals. On the 

 ground, in the grass, on the leaves, on the stems of trees, and under- 



