A handbook on the teeth of gears, their
โ
W.B.L.
๐
Article
๐
1885
๐
Elsevier Science
๐
English
โ 67 KB
In nmking a careful comparison between the last (the 22d) edition, and the one that precedes it, the expert cannot fail to be struck with the great improvement exhibited by the present edition. We say improvement, although it seemed ahnost impossible that the book in its various editions needed any