42 t''"*y' 
at least would be difficult to account for on any theory. If there was a distinct 
centre of creation for the two countries, we must either suppose that undulata was 
created alike in both regions, and Nature reproduced herself, or else if we turn 
Darwinians for the nonce that unduhita was " developed" in both regions ; now it 
seems to me that if we are to take two cells or germs as our starting points, it is 
but an N'th chance (where N is infinitesimally small) that any process of natnral 
selection should even develope the same order, Lepidoptera, in both the centres. 
How utterly impossible, then, must it be that that they should both develope the 
same species! 
If, on the other hand, the Continents were ever continuous, we have then in 
our friend un&ulata that often often quoted individual " the oldest inhabitant," 
and a thorough-going Tory he seems to be, for not a spot or speck is changed on 
his coat, though he must have lived under different climates and under different 
circumstances in the two countries from those old days when mammoths were 
plentiful as blackberries, and long before the time when Adam was a little boy. 
Seriously speaking, however, the v/ndulata must teach us how vain at pre- 
sent is any attempt at a theory of creation, and how difficult to reconcile with the 
facts around us. We feel how little we do know, and how truly Tennyson speaks 
when he calls man — 
" An iafant crying for the light, 
And with no language but a cry." 
R. C. R. Jordan, M.D., Edgbaston, Birmingham. 
Note on the luminosity of Fulgora. — At the sSance of the Entomological Society 
of France, 22nd November, 1865, M. Moufflet communicated some details on this 
question, which has been so frequently asserted and denied by Entomologists ; he 
affirmed that he had seen examples of Fulgora laternwria near Soleda, in Mexico, 
which in the evening emitted a somewhat brilliant light from the cephalic pro- 
longation. 
Notes on Moths attracted hy Oas Lamvps. -While in London, in 1858 and '59, I 
worked hard many a night in the examination of the gas lamps which light the 
various roads round the outskirts of London, for the sake of the insects attracted 
by the lights. Several of my friends have, I know, tried the same plan of col- 
lecting since then, and have taken many good things ; but a few notes on what 
was to be done in that locality may still be interesting. 
I hai'dly need say that, for success in this mode of collecting, a dark night is 
almost indispensable, and a moderately still one nearly equally so. It should also 
be dry, for moths do not seem to approve of wet lamps. On such suitable nights 
something may be found at almost any time of the year, although, in the first three 
months, it is not likely to be anything much rarer than Phigalia pilosaria, the 
Eibemiw, Larentia multistrigaria, &c. In April occurred my first specimen of the 
then very rare Camptogramma fiuviata, hybernated of course, but tolerably fine. 
Selenia lunaria, too, made its first appearance In May Smerinthus populi, though 
common, looked a fine thing on a lamp. Scotosia certata frequently occurred in the 
first half of the month. Selenia lunaria was still out, and Drepana hamula, 
Peridea tn-epida, Notodonta dictcea, and Dianthoecia carpophaga made their appearance 
with Pn/fftpnvjyTj siratiotoUn , which continued to appear till August. 
