Masterpieces of Science 



every year, and especially in the West and 

 South, there is somewhere a multiplication of 

 grasshoppers to a very injurious degree, and 

 it is hoped that the introduced fungus can be 

 used in such cases. 



Persons officially engaged in searching for 

 remedies for injurious insects all over the world 

 have banded themselves together in a society 

 known as the Association of Economic Ento- 

 mologists. They are constantly interchanging 

 ideas regarding the destruction of insects, and 

 at present active movements are on foot in this 

 direction of interchanging beneficial insects. 

 Entomologists in Europe will try the coming 

 summer to send to the United States living 

 specimens of a tree-inhabiting beetle which 

 eats the caterpillar of the gipsy moth, and 

 which will undoubtedly also eat the caterpillar 

 so common upon the shade-trees of our prin- 

 cipal Eastern cities, which is known as the 

 Tussock moth caterpillar. An entomologist 

 from the United States, Mr. C. L. Marlatt, has 

 started for Japan, China, and Java, for the 

 purpose of trying to find the original home of 

 the famous San Jose scale — an insect which has 

 been doing enormous damage in the apple, 

 pear, peach, and plum orchards of the United 

 States — and if he finds the original home of 

 this scale, it is hoped that some natural enemy 

 or parasite will be discovered which can be 

 introduced into the United States to the ad- 

 vantage of our fruit-growers. Professor Berlese 

 134 



