316 WEST VIRGINIA EXPERIMENT STATION. 



land, but few are worthy of mention in this connection. I 

 made collections of such insects and interesting plants of the 

 Alps as I could find 1 and some interesting observations were 

 make on features of Alpine forest management and insect 

 enemies of trees. While on the Rigi I collected a number of 

 various species of bark beetles on the snow, to which they had 

 been attracted in their flight from the warmer valleys. Along 

 the path that leads up the Great Scheideck through Schwarz- 

 wald, I found a number of spruce trees at an altitude of possi- 

 bly 5,000 feet that had been recently felled, in the bark of 

 which the spruce bark beetle Tomicus cembrae occurred in enor- 

 mous numbers. In the bark of these trees, I also had the good 

 fortune to find a few Clerid larvae, evently of the same species 

 as the ones collected in Germany. Subsequently I found in 

 the bark of recently felled spruce trees, in the Lauterbrunnen 

 Valley, both adults and larvae of Clerus formicarius,in com- 

 pany with Tomicus cembrae and Dryocoetes autographus. Thus 

 proving that the Clerid would attack bark beetles of different 

 species, and that it would live in the spruce as well as the pine. 

 Also evidence was found that it could survive at as high or 

 higher altitudes than any in West Virginia. This discovery 

 was of special interest, indicating as it did that the Clerid 

 would adapt itself to all of the varied conditions and require- 

 ment of the West Virginia forests, if it could be successfully 

 introduced and established there. 



RETURN TO AMERICA. 



Finding by the 24th of September that I could get through 

 France to England without much trouble or delay from quar- 

 antine regulations, 1 left Switzerland via Berne, Delle and Col- 

 las and arrived in London on the 25th, and from London pro- 

 ceeded via Nottingham to Liverpool, from which point I sailed 

 on the night of the 28th in the same steamer (City of New 

 York) that brought me over. 



After a stormy but safe and pleasant voyage, I arrived in 

 New York on the 5th of October. A brief examination of the 



1 In Experiment Station Collections 



