THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER, 
85 
failiug success with both the larger 
Bombyces and several of the SphiDges, 
viz., S. Ocellalus, S. Bombyliformis, 
M. Stellalarum, &c. ; and the only moths 
I have found resist the influence of 
cyanide of potassium for any length of 
time have been A. Filipendulce and 
P. Staliees. As my experience has been 
in Ireland, there may be a few other 
kinds in England that may likewise re- 
sist it, but I am sure their number will 
be very small, and that any collector 
who tries this method will find it suc- 
cessful, and a great saving to him of 
trouble and disappointment. 
Jno. B. 
BARTER. 
To the Editor of the ‘Intelligencer.' 
Sir, — It is, I think, generally ad- 
mitted that, while by your exertions you 
have vastly added to our store of know- 
ledge, by extending the number of 
labourers and observers in the field of 
Entomology, as well as by your own 
individual industry and observation, you 
have at the same time lowered it as a 
Science by being the unintentional cause 
of infiuite bartering. Now, Sir, is it not 
possible to retrieve this ill effect, and yet 
let the good remain ? 
As it is matters get from bad to worse, 
and good men are being driven from our 
cause in disgust at the huxtering, greedi- 
ness and under-band dealing with which 
the collecting of insects is becoming in- 
separably connected. I consider that it 
would be a true charity to all entomolo- 
gists, observers and collectors, if some- 
thing were done to check this rapidly- 
spreading tendency to drive bargains, 
which, even in its mildest form, is 
illiberal, and which is dragging down 
Entomology to a grovelling level, much 
as it may be progressing in other 
respects. 
For the benefit of those who are not 
too hardened, of the wavering and in- 
cipient, I will sum up, in as few words 
as possible, the merits of the respective 
systems of gift without stipulation and 
barter (“ exchange,” in its present mean- 
ing); but, firstly, I wish to be clearly 
understood upon one point, which is, — 
I hold that indiscriminate liberality is as 
unjust to the worthy as it is calculated 
to foster greediness, hypocrisy, falsehood, 
&c., in the unworthy, as mure than one 
have discovered by this time, though 
possibly a little of this vice may not be 
a bad thing for an entomologist to com- 
mence v/ith, as a means of obtaining 
correspondents. 
No man who has not tried the plan of 
giving without stipulation to those who 
are worthy of receiving can form any idea 
of the intense pleasure which is thus 
afforded him in assisting his brothers in 
Science ; next to this perhaps comes 
receiving without stipulation , for to what 
can we attribute this confidence reposed 
in our honour but to respect, unless in- 
deed it be to gross hypocrisy : be sure 
that he whom you have thus honoured 
will not fail to show his appreciation of 
your kindness, should he have it iu his 
power: should the means, however, be 
wanting then ought you to be doubly 
pleased that your intentions cannot be 
misconstrued. Emulation of a most 
pleasing nature often springs up in these 
cases ; each feels in the other’s debt, not 
for the hypothetical value of the gift, but 
lor the kindness which prompted it, and 
for the esteem which you know exists, 
flattering as it is for you to think so. 
