266 THE ENTOMOLOGIST. 
[This note arrived after the publication of the February 
number. In reply, I may say that I have had no experience 
in breeding Liparis dispar. English specimens, either as 
eggs or larve, are not to be obtained, but, as in silkworms, a 
domesticated race of the insect is constantly maintained. 
Perhaps some of my correspondents will relate their expe- 
rience.— HH. Newman. | 
Exchanging.—The discontinuance of the Exchange Club, 
which has been carried on by myself and Mr. Marsden since 
1868, would seem to suggest the desirability of a little expla- 
nation, as the experience we have gained may prove useful, 
should any such club be established by others, which we 
hope will some day be done. Notwithstanding the inconve- 
nience of a defective centre, like Gloucester, where the 
deficiency of entomologists rendered the work too onerous, 
the practicability of a-legitimate system of exchanging has 
been fairly demonstrated during the three seasons of the 
club’s existence. The subscription being fixed so low as 
half-a-crown, and the expenses of bringing the club before 
the entomological public being much greater the first two 
years than they would be subsequently, left a considerable 
deficit at the end of 1869; but this was nearly obliterated in 
1870; and had the club been continued another season there 
would have been a small credit-balance to purchase insects 
for distribution. But the secretary, Mr. Marsden, has been 
obliged to resign from ill health. The results of the three 
years may be roughly tabulated thus :— 
No. of 
No. of Of whom specimens 
members. contributed. received. 
MSGS “Gesce se  RO A eee ee 20, Cade, ae ne 
SCO cc sce CLO A Gaee  OUR Ea rtae ace eee 
OMEN Sete see AY Ph Rea ode gece eee mre 
Of these 13,000 specimens fully half were of little or no 
value, on account of their being badly set or in bad condition ; 
but all that have been worth sending, and many, indeed, that 
were not, have been distributed. Many very good local 
species have been sent to the club, but no rarities, which 
were, in fact, not to be expected. Every effort was directed 
to make the distribution as fairly as possible, in proportion to 
the relative value of the specimens received; and with the 
exception of two members in 1869, and two in 1870, all have 
