Gr. H. F. Nuttall 
91 
from Mexico is forthcoming from other parts of the globe. I have noted 
elsewhere (p. 82) the occurrence of body-lice in the tropics. Mr 
F. M. Howlett informs me that corporis occurs in colder parts of India 
and capitis both in cold and hot parts, but the distribution of lice 
requires to be studied before a decided opinion can be expressed. 
The Distribution of Corporis upon Man’s Clothing and Person. 
It is commonly stated that corporis is confined to the clothing, 
chiefly the underwear, that it lays its eggs solely on clothing and only 
goes upon the body to feed. Of recent authors, Pinkus (1915, p. 239), 
Fasal (1915, p. 225), and Sergent and Foley (vi. 1915, p. 378), may be 
cited as expressing this view, although Fasal adds, that if an infested 
man is stripped rapidly, lice are occasionally found on his body. We 
shall see that this view is incorrect, for corporis occurs on the body and 
it may oviposit upon the body hair. 
In considering the distribution of pediculi upon the person and 
clothing, it is well to bear in mind that lice possess very active locomotory 
powers. I have seen a female corporis travel at the rate of 1 metre 
in under 3 minutes across sateen (see p. 100), and it is evident that 
they can run a distance equal to the length of a man’s body in a few 
minutes. This activity of lice should not be obscured by their marked 
tendency to haunt or assemble on particular parts of the clothing or 
person. 
We shall first consider the distribution of corporis upon the clothing 
of infested persons. 
DISTRIBUTION UPON THE CLOTHING. 
Railliet (1895, p. 827) states that corporis mainly infests the clothing 
that is closely applied to the body, i.e. on the back of the neck, shoulders, 
lumbar region, waist, wrists, thighs and external surface of the buttocks. 
Legendre (1915, p. 280), writing from experience with French 
soldiers in the present war, states that most adult lice are found on the 
underclothes in contact with the body, a certain number occur on the 
outer garments where the nits are specially found; nits are rare on 
underclothes but numerous inside the tunic, trousers and neckcloth- 
folds, whereas there are few in puttees and usually none in the cap. 
In connection with German soldiers, Uhlenhuth (1915, p. 533) 
states that he has seen lice on soldiers’ suspenders and at the entrance 
to the trousers’ pocket; Hase (xi. 1915, p. 158) notes that lice often 
