THE PINE INVESTIGATION. 



307 



enabled to find the clerids which invariably make their pupa 

 cases in the outer soft bark, and as a rule, in that at the base of 

 the tree. Although but few trees were found in the proper 

 condition for Clerids, we succeeded during the day in collecting 

 53 larvae, 2 pupae and 2 adults. So common were they in the 

 bark of some trees that a dozen or more were taken from 

 pieces of bark five or six inches square. If the bark had not 

 been removed from the trees, we would certainly have secured 

 several hundred examples. It was evident to me that if the 

 practice ot removing the bark from the base of the dead 

 and dying trees was for the purpose of destroying the bark 

 beetles, more harm than good had probably resulted, since the 

 bark beetles appeared to have occurred in the greatest num- 

 bers on the upper part of the trunk where the bark had 

 not been removed; while the beneficial 

 Olerid had either been destroyed in the 

 bark, which had been taken from the 

 base of the tree and burned, or they had 

 been deprived of this, their favorite 

 place for pupating. 



We arrived at Moritzburg in the even- 

 ing, and after dining at the hotel in the 

 village and visiting the ancient u Jag- 

 dschloss" or king's hunting castle, we 

 returned to Meissen, where we arrived 

 at 11 p. m., much fatigued from our 

 long tramp through the forest. The 

 next day being Sunday, I was enter- 



Fig. XXXVIII. Six pupa 

 cases of the European 



bark beetle destroyer in 



tained by Mr. Schaufuss at his home, 



and with him visited points of interest, including the Agri- 

 cultural Experiment School, which corresponds somewhat to 

 our Experiment Stations. 



RETURN TO STRASSBURG THROUGH BAVERA AND BADEN-BADEN. 



On Monday I returned to Dresden in company with Mr. 

 Schaufuss. After visiting many points of interest and arrang- 

 ing with Mr. Schaufuss to procure as many examples of the 



