CHAPTER OF CRITICISM. 
433 
I have never seen rocks of any other kind than Lime-stone blasted. Can any 
of your correspondents inform me if the result is the same with stone not con¬ 
taining Carbonate of Lime ? 
I remain, 
Yours very truly, 
Maidstone , Feb. 15, 1839. W. H. Bensted. 
i 
CHAPTER OF CRITICISM. 
Notes on various Topics. 
To the Editor of the Naturalist. 
Bewsey House, April 8, 1839. 
My Dear Sir,* —As I am aware that it would not be convenient to give a 
figure of P. podalirius in The Naturalist , I beg to refer Mr. Pigott to Mr. 
Duncan’s work on British Butterflies published in Sir W. Jardine’s series, or to 
Mr. Westwood’s Entomologists Text-Book. With reference to the latter work, 
I may take this opportunity of stating that it appears to me admirably adapted 
for the use of students. The matter is well arranged and interesting, and the 
figures (with one or two exceptions) are tolerably accurate. On the habits of the 
Hyticacea Mr. Pigott will find some information in Westwood’s Introduction to 
Classification , Kirby and Spence, Griffith’s Cuvier , &c. I shall probably 
“ glance” at this tribe in a continuation to the paper on the Adephaga inserted in 
the last number, (p. 343). 
Mr. Green has noticed (p. 319) a subject of considerable importance. The 
benefits accruing from Latin descriptions do not by any means, in my opinion, 
outweigh the disadvantages. In Magazines, especially, the insertion of Latin 
