Addresses — Injuries to the Apple and Grape. 239 



me because now I know where you are." I know their names now. 

 I have learned that much. Bat the question is, what am I going 

 to do about it? 



Dr. Hoy — I will ask any gentlemen present to send me any 

 worms that they find injuring their crops or the forests about them. 

 Put them into a little tight box. There is no necessity for any 

 holes. Put in some of the plant or the leaves you find them on. 

 Holes are of no use, but are injurious because of the evapora- 

 tion of the plant. The insects would be very easily destroyed if 

 they were so tender you had to furnish them air, but they are very 

 tenacious of life. 



Mr. Robbins — How are we going to kill them? That is the 

 question. 



Dr. Hoy — That is a question the farmers ought to be better 

 instructed upon. We must understand their habits before we can 

 manage them. We see such ignorance as that " catcher," think- 

 ing the curculio climb up the tree. If that was so we would have 

 saved our plums long ago. 



Mr. Robbins — He thinks he has found out bow. 



Dr. Hoy — There is that difference between wisdom and happi- 

 ness. The man that thinks himself the happiest is the happiest, 

 but the man that thinks himself the wisest is not always so. In 

 sending insects put them in boxes and tie with a string, and mark 

 on the outside " Samples of Natural History." The postage only 

 costs a cent an ounce. A cent will pay for a pretty good lot of 

 worms. Address " Dr. P. R. Hoy, Sr.,*' Racine, Wis., for there are 

 two Dr. Hoys in Racine. I will be very happy to correspond with 

 you and give information, and answer such questions as you may 

 propound. I think in a great many instances people have been de- 

 stroying their best friends, supposing them to be enemies. A man 

 in Racine went to my son and told him his plum trees were over- 

 run with a sort of bug or worm that runs upon the bark; he had 

 killed thousands and thousands of them. He told me, and I said 

 " They may be beneficial to your plum trees." He brought some 

 to me, and they were the young of what is called the " lady-bug." 

 The trees had been infested with plant-lice, and they had been up 

 and entirely destroyed the plant-lice and came down on the body 

 preparatory to undergoing the change to come out as those beauti- 

 16 — Hort. So. 



