THE ENTOMOLOGIST’S WEEKLY INTELLIGENCER. 
197 
Pavonia-minor I should like lo exchange 
for pupae or itnagos of the following 
3 ~ 5, 10, 1 1, 13, 14, 17—20, 23, 28, 29, 
31—33, 38, 39, 41—46, 48—53, 55, 58, 
59, 62, 63, 66—70, 75, 85 — 87, 107, 129, 
134, 136, 139, 140, 147—163, 166, 174— 
178, 180, 184, 190 — 203. Any gentle- 
man not having any of my wants will 
please send a box and return postage. — 
Thomas Melloii, Skircoat Green, near 
Halifax. 
An Offer of Larva ;. — I shall be happy 
to send larvae of Coleophora Lineolea and 
Albitarsella to any one, in May, who is 
in want of those species. I give this 
early intimation that I may know how 
many to collect. Applicants need not 
send a box, but should enclose two 
stamps to prepay postage.— W . Barren, 
1, Elm Street, Cambridge ; March 6. 
Caution . — Having lent various sums 
of money to Peter Bouchard, of Marling- 
Pit Cottage, Sutton, Surrey, for collecting 
purposes, not one penny of which he has 
returned, I hereby caution all parties 
against trusting the said Peter Bouchard 
in any way. — H. J. Harding, 1 , York 
Street, Church Street, Shoreditch. 
Haggerstone Entomological So- 
ciety. — Mr. H. W. Killingback having 
ceased to be connected, either as Secre- 
tary or Member, with the above Society, 
all communications, &c., should in future 
be addressed to Mr. C. J. Biggs, Secre- 
tary, Haggerstone Entomological Society, 
Brownloxv Street, Haggerstone, N.E. 
The proposed East London Ento- 
mological Society. — In reply to “An 
East-ender,” as to the formation of tfn 
Entomological Society in his locality, 
I beg to inform him that several ento- 
mologists residing at the east end be- 
long to the Haggerstone Entomological 
Society ; but, if he can get a few friends 
in his neighbourhood to form a nucleus 
for such a Society, I will lend him any 
assistance in my power for such an ob- 
ject. As “An East-ender” has not signed 
his name lo his communication, I cannot 
address to him a letter on the subject, 
but will meet him if he wishes to carry 
out his suggestion. — H. J. Harding, 
President of the Haggerstone Ento- 
mological Society, 1, York St., Church 
Street, Shoreditch ; March 10. 
Economic Entomology. — At a recent 
meeting of the Literary and Philosophical 
Society of Lancashire, held at Liverpool, 
Mr. C. S. Gregson exhibited a package 
of Centaurea tinctorea (the safflower of 
commerce), so injured by the ravages of 
a small beetle, Lasioderma testaeeum of 
Stephens’ ‘Manual of British Coleoptera,’ 
1839, as to have reduced its commercial 
value from £10 1? cwt. to £7 cwt., 
and observed it had been forwarded him 
to ascertain what had done the injury, 
and to suggest a remedy. Having ex- 
perimented with the article he found that 
by submitting it to a tolerably high tem- 
perature, such, for instance, as that of a 
common baker’s oven after the bread had 
been withdrawn, was quite sufficient to 
destroy the ova, larva, pupa aud imago 
of the insect then in the package, without 
injury to the safflower itself; but he 
found, if submitted to a very high degree 
of heat, the dye would no longer give 
way to the fixed alkalis, consequently 
its commercial value, which entirely de- 
pended upon the beautiful red it pro- 
duced, ceased, as the yellow it gave out 
could be better obtained from other 
