EXPLOKATIONS IN CHINA. 13 
tion of the entire Japanese Empire conducted by Japanese entomolo- 
gists under the authority of the Imperial Agricultural Experiment 
Station in Japan. The publication giving the results of this investiga- 
tion a is a very interesting and valuable contribution to our knowledge 
of the subject, and is illustrated by njumerous maps and figures. 
EXPLORATIONS IN CHINA. 
Investigations up to this point, while freeing Japan from the onus 
of giving the San Jose scale to the world, left the problem unsettled 
as to the original home of this insect. China remained as the most 
likely place of origin, and the writer proceeded to China to continue 
his explorations there. While in Japan a good deal of information 
was gained relative to fruit conditions in China, from English, Ger- 
man, and American residents who were spending the summer months 
in Japan to escape the rather trying climate of China. In brief, it 
may be stated that deciduous fruits are grown from the Shanghai 
region northward, the peach being practically the only fruit grown to 
any extent about Shanghai. The great apple district of China is the 
region lying back of the city of Chifu in the north. This apple- 
growing industry was started many years ago b} T a missionary, Doctor 
Nevius, and has assumed very considerable proportions and covers a 
good deal of the province of Shantung. Below Shanghai the orange 
and other subtropical fruits replace the deciduous varieties. North 
of Chifu native fruits only are grown, consisting of the native pear 
and peach, and such wild fruits as wild crab apples and an edible haw 
apple. 
A very considerable exploration of the country lying immediately 
back of Shanghai was made in the course of a long house-boat trip. A 
great many peach orchards were examined and a good deal of mis- 
cellaneous fruit and other plants growing about house yards were 
inspected. Nowhere was there any evidence of the San Jose scale, 
nor were scale insects of any sort much to be seen. The climate of 
this region is unfavorable for such insects and they are normally 
killed out by fungous disease. The writer afterwards proceeded by 
boat to Chifu — a five-day ocean trip from Shanghai, and made a con- 
siderable exploration thruout the apple orchards of this region on 
horseback, visiting, among others, the original orchards planted by 
Doctor Nevius. In all these the San Jose scale was found scatteringly 
present, not, however, doing any special damage, and probably not 
enough to be noticed, if its possibilit} 7 for evil was not so well estab- 
lished. The presence of the San Jose scale in this region did not, 
however, have an} r special significance, since much of the original 
« The San Jose scale in Japan. Imperial Agricultural Experiment Station, Tokyo, 
1904. 
