208 REMARKS ON THE PRESERVATION 
neglect in keeping up a poisoned atmosphere, the 
specimens collected by industry, and prepared by 
art, and which ought to live, as it were, for the ad- 
miration of future ages, may fall a prey to an in- 
truding and almost invisible enemy ; so that unless 
the solution of corrosive sublimate in alcohol is ap- 
plied, you are never perfectly safe from surprise. 
I have tried a decoction of aloes, wormwood, and 
walnut leaves, thinking they would be of service, 
on account of their bitterness: the trial completely 
failed. Wherefore I venture to recommend not to 
put much trust in simples. 
‘Contra vim mortis, non est medicamen in hortis,’ 
* Against the deadly moth, can 1, 
From herbs, no remedy supply.’ ” 
METHOD OF TRANSPORTING INSECTS. 
The plan described by Levaillant in his Travels 
in Africa, for the preservation of his entomological 
collections, is the following :—Boxes or chests care- 
fully made of light wood, of a convenient portable 
size, are provided with partitions and moveable 
shelves, each consisting of a simple board; these 
are fitted, at the distance of two inches one from 
another, in grooves in the sides of the box, in 
which they are made to slide with accuracy and 
facility, and are therefore removable at pleasure. 
