Restoration of the Silkworm. 161 
own experience, and leave each inquirer to please himself as to 
the species he may find it most convenient and most suitable to 
adopt. 
The question then is, ‘ what species of mulberry tree is best 
adapted for the nourishment of the silkworm, and for the pro- 
duction of good silk ?” 
Were all climates alike the question might be easily answered, 
but in its present form it is too vague and general; besides which, 
thus put, it assuredly implies a belief that we have only one species 
of silkworm under cultivation, and that whether monthly or annual, 
all come under the head of Bombyx Mort. This, however, is not 
the case, the name of B. Mort belonging of right to the worm 
known in India as the Cashmere worm, which is an annual, and is 
cultivated in Afghanistan, Bokhara, Persia, Syria, Italy, France 
and other European countries. It was originally brought from 
the northern provinces of China, where the country is mountainous, 
and the climate, especially in winter, very severeand cold. There 
is also another worm cultivated as an annual in Bengal under the 
native name of Loro-pooloo, which means “ large cocoon,” it being 
the largest species of Bombyx under cultivation in Bengal. As 
compared with the cocoon of the Cashmere worm, however, it is 
very much smaller, of a different form and texture, and yielding 
generally a pure white silk, although, as already observed, in the 
colder temperature of Mussooree the yellow cocoons are at least 
quite as numerous as the white. This likewise is from China, and 
from its being an annual is. supposed, with good reason, to be a 
native of the northern parts of that country. This species I have 
named Bombyx textor, as it is totally distinct from the Cashmere 
worm. 
Three other species domesticated in Bengal are respectively 
termed the Madrassee or Nistry,—the Dasee,—and the small 
Chinese monthly worm; these three are termed monthly worms 
because they yield from six to eight crops during the year. 
These I have respectively named Lombyx Creesi, B. fortunatus 
and B. Sinensis, while from the fact of their yielding several crops 
a year I am inclined to regard them as belonging to the warmer 
and more southern parts of China, the number of broods indicating 
a climate in which food is abundant throughout the year, while the 
annuals on the contrary, as every naturalist is aware, indicate a 
far more temperate climate. 
Besides these there is said to be another species cultivated in 
Arracan which yields a silk superior to that of the Bengal worms, 
but as I have been hitherto unable to procure it for examination, 
