CENTIPEDE WORMS. 
757 
open a curious scene of domestic economy. There were many caverns 
and winding passages leading to a kind of chamber, neatly smoothed 
and rounded, and about the size of a moderate snuff-box. Within 
this secret nursery were deposited nearly one hundred eggs, of a dirty 
yellow colour, and enveloped in a tough skin, but too lately excluded 
to contain any rudiments of young, being full of a viscous substance. 
The eggs lay but shallow, and within the influence of the sun, just 
under a heap of fresh-mowed mould, like that which is raised by ants. 
When mole-crickets fly, they move in undulations, rising and falling 
in curves, like other species mentioned before. In different parts of 
this kingdom people call them fen-crickets, churr-worms, and eve- 
churrs, all very apposite names.” 
Centipede Worms. 
These worms have a great many feet, though the number does not 
amount to one hundred, as the term imports. M. Maloet mentions 
a man, w ho for three years had a violent pain in the low'er part of 
his forehead, near the root of the nose ; at length he felt an itching, 
and afterw'ards something moving wdthin his nostril, which he brought 
away with his finger. It was a worm of the centipede kind, an inch 
and a- half long, which ran swiftly. It lived five or six days among 
tobacco. The patient was free of his pain ever after. Mr. Littie 
mentions a somew/hat similar case in 1708, of a larger centip-ede 
voided at the nose, after it had thrown the woman, in whose fron- 
tal sinus it was, into convulsions, and had almost deprived her of her 
reason. 
Microscopic Animals. 
On this subject the following observations from Mr, Adams are 
peculiarly interesting. 
“How many kinds of these invisibles there maybe, is yet unknown, 
as they are discerned of all sizes, from those which are barely invisi- 
ble to the naked eye, to such as resist the force of the microscope, as 
the fixed stars do that of the telescope, and, with the greatest powers 
hitherto invented, appear only as so many moving points. The 
smallest living creatures our instruments can shew, are those which 
inhabit the waters ; for though animalcules equally minute may fly in 
the air, or creep upon the earth, it is scarcely possible to get a view 
of them ; but as water is transparent, by confining the creatures 
within, we can easily observe them by applying a drop of it to the 
glasses. Animalcules in general are observed to move in all direc- 
tions with equal ease and rapidity ; sometimes obliquely, sometimes 
straight forward ; sometimes moving in a circular direction, or roll- 
ing upon one another, running backwards and forwards, through the 
whole extent of the drop, as if diverting themselves ; at other times 
greedily attacking the little parcels of matter they meet with. Not- 
withstanding their extreme minuteness, they know how to avoid 
obstacles, or to prevent any interference with one another in their 
motions : sometimes they will suddenly change the direction in which 
