NOTES AND QUERIES. 199 
THE CATERPILLARS AT CLITHEROE.—Considerable commotion 
has been occasioned in Clitheroe and the surrounding district during 
the past month, owing to circulation of the intelligence that a huge 
quantity of insects of peculiar construction had arrived in the neigh- 
bourhood, and had located themselves in the vicinity of Pendle 
Hill. The phenomenon was first observed at the beginning of the 
month by persons passing along the road over Pendle Hill, leading 
from Sabden to Clitheroe. What appeared to onlookers as cater- 
pillars were noticed to be crawling along the road in large numbers, 
and each succeeding day they increased until the road was almost 
black with them, and it was impossible to place the foot on the 
ground without crushing several of them. Day by day they pro- 
gressed in their mysterious journey, until at length they arrived at 
the Wellsprings beerhouse. The proclamation of the news of this 
visit induced a large number of naturalists from all parts to visit 
Clitheroe ex route for Pendle, and the result has been that they 
have carried back with them large quantities of the insects, and 
caused them to be inspected in a great many towns. The insect 
has had bestowed upon it a great variety of names. A local 
naturalist is of opinion that those of Pendle Hill are the perfect 
specimens of the caterpillar //uséa gamma, or the silver Y, so 
called from the silver mark on the wings in the shape of the letter 
Y. A correspondent writes to tell us that the caterpillar is that of 
the antler or grass moth, Chareas graminis, which often does much 
damage in Germany, France, and Sweden. Another correspondent 
is sending us several, so that we may be able to say something 
more next month. 
PHOTO-MICROGRAPHS.—We have received during the month two 
very good photographic enlargements of the Liver fluke (Fasciola 
hepatica) and of the parasite of the Whale (Prenogonium Litorale ), 
from Mr. W. Shipperbottom of Bolton. ‘They are two of several 
taken to illustrate Mr. C. L. Jackson’s paper on “ Parasites and 
Messmates,” notice of which has already appeared on p. 136 of 
THE NORTHERN MICROSCOPIST. 
UTILIzATION OF Micro PHoToGRAPHS.—During the siege of 
Paris by the German forces microscopic photography played an 
important part. By its aid the besieged were enabled to send 
information to the outer world. Printed information was reduced 
by means of photography to a minute scale. These Microscopic 
despatches were conveyed by means of Carrier Pigeons and other 
devices, to various towns in France. 
