Ixxxiii] ( 13) 
The most convenient mode of applying the skin to 
the paper, is by the assistance of a short roller, or cylinder, 
held in the hand, and on which the skin and paper are 
gradually rolled. By these means, only one part of the skin 
coming on to the paper at one time, the due stretching and 
placing of it is managed with the greater exactness: . . 
I ought not in this place to omit mentioning, that, on an 
occasion, about a year later, when one of my. Hottentots 
brought me a large caterpillar” [this may be No. 3, the 
specimen of livornica, without data], “the colours of which 
were exceedingly beautiful, and its delicate marks beyond the 
power of imitation, I was induced to try the experiment of 
preserving it in the manner I had adopted for the serpents. 
In this I met with exactly the same success ; and which was: 
afterwards fully confirmed by several other trials.” [The six 
larvee with data, Nos. 1, 2, and 4—7, are evidently referred 
to here.] ‘ But as the time required for making a collection 
of these, must have been taken from other affairs of more 
importance, and as the possession of insects in the caterpillar 
state only, would have been of little use to science, and 
merely amusing curiosities, I collected very few objects of that. 
kind. This hint may, perhaps, be the more valuable, as many 
difficulties have been found hitherto in the art of preserving 
the larve with their natural colours ; a desideratum which this 
method will accomplish, if ten years be considered sufficient 
for proving their permanency.” 
December 7th, 1904 
Mr. G. J. Arrow exhibited on behalf of the Hope Collection, 
and in illustration of his paper read Oct. 5 last, a series 
of specimens of Passalidz collected by Burchell in Brazil, and 
read the following observations, found by Prof. Poulton 
among the MS. note-books of this traveller and referring to 
these specimens :—‘“ 1142. Passalus. Found under large chips 
of wood in the forest. In the manner of Carabi, but it does 
not run a fourth so quickly. Judging from large holes in these 
chips, its larve are bred there. On taking it in the hand, it 
