172 FLASHLIGHTS ON NATURE 



and completely this can be done : how each has 

 its groove in the marvellous economy of nature. 



In No. 9 you see the organs closing (also a 

 back view) ; the tongue having been now drawn in, 

 while the saw-like jaws and the delicate feeling 

 palps are still exposed and ready for working. 

 No. 8, on the contrary, is the feeding attitude. 



NO. II. MOUTH QUITE CLOSED : ATTITUDE FOR SCRAPING WOOD: 

 END OF ONE MOVEMENT. 



In No. 10 (another back view), the palps have 

 been turned back into their special groove, and 

 the saw-like jaws are seen free for working. This 

 is the attitude in which the wasp attacks a park 

 paling, in order to scrape off wood-fibre for the 

 manufacture of paper. Here, as you see, the jaws 

 are open. In No. n they are closed, at the end 



