October, ’18] 
WOODWORTH: CHINESE SILK INDUSTRY 
411 
of eggs and propose to rear them in comparison with each other and 
then will know better which is most economical. I think the collection 
of eggs I now have is probably the largest assortment ever brought 
together and it is probable that I will have a great many more provided 
my plans of a short course on silk rearing are not prevented by war 
or pestilence which may be operating at once here in Nanking. 
In any case, however, I expect to be able to rear the eggs that I have 
and we have secured the largest orchard of mulberries in Nanking or 
hereabouts and our supply of leaves is therefore assured. I estimate 
they will produce about three or four tons of leaves. 
I have twenty lots of the common local strains of silk from as many 
localities. These are produced in the usual Chinese way and are 
untested for disease, which, I understand, is very prevalent. The 
remainder are produced according to the Japanese methods, which 
in turn were based on the methods devised by Pasteur. 
The silk merchants have just established an organization for extend¬ 
ing and popularizing the use of tested eggs in order to improve the 
quality of cocoons. Japan has increased her production of silk the 
last few years till it exceeds China’s production and that ought to be 
enough to wake up the people of China to the realization of the need 
of better methods. 
The Chinese government has established a number of silk schools 
and many agricultural schools in all of which, in this district, the rear¬ 
ing of silk and testing of eggs are taught. 
I had the pleasure of visiting a new 50 basin filature just erected at 
Hangchow. The machinery was all Japanese and looked very satis¬ 
factory. 
Japan is thus having a great and good influence on the silk industry 
of China, in the teaching at the schools, in the factories and in the 
spirit of emulation which her success in the silk industry has awakened 
in the progressive people among the Chinese. 
CLYTUS DEVASTATOR, A NEW PEST OF THE FLORIDA 
ORANGE 1 2 
By E. A. Back, Bureau of Entomology 
The insect discussed in this paper is not new to Florida. Neither 
is it new as a pest of Citrus , but it apparently has never before been 
recorded as a pest of the Florida orange. The purpose of this paper 
is to call attention to its capacity to injure orange trees in Florida 
should conditions become favorable for its increase. 
1 Published with the consent of the Secretary of the U. S. Department of Agriculture. 
2 
