ROt MULL i. 153 



6. If no rocker arm, or a direct rocker arm intervenes, 

 the correct position of the eccentric is about 120 degrees 

 ahead of k. If there is an indirect rocker arm the 



trie will he about 60 degrees behind the crank. 

 "Rcth thing that will give you a better un- 



aig of - :s uses. Learn to think 



yourself by carefully proving or mg every theory 



or argument tl: be advanced by anyone, 



Tumble" is a good thing to commence 

 1 to acknowledge that you have 

 you approve of it don't hesitate to say so. 

 Only a short time ago I read an article in The Ameri- 



rhresherman from a party who stated that he 

 not believe in reading books on engineering and stated 

 that all he knew he had learned in the field, an 

 prov about t! '.g of a valve, copied 



an article word for word that I had written in the 

 edition of "Rough and Tumble don't object 



to his copying the article; I think he was making good 

 use of his time while he was at it. But to copy an 

 cle and thru say he never read a book in order to make 

 it appear that the ideas were hi< was a questionable per- 

 formance it: cmcnt 



