THE WORLD'S ADVANCE 



45 



Extremely delicate controls permitted the 

 work to be carried on with the greatest 

 speed and accuracy. 



A MARINE HARVESTER 



Not long ago there was placed in use 

 at San Diego, Cal., the first sea-mowing 

 machine for the purpose of cutting the 

 millions of tons of kelp and seaweed 

 that grow along the coast. A gasoline- 

 launch was fitted with a horizontal jack- 



BUILDING MACHINERY FROM 

 BOOK AND MAGAZINE IN- 

 STRUCTION 



Considerable credit is due C. W. Rich- 

 ardson of Rugby, Va., for the ingenuity 

 he has displayed in building his own 

 workshop and equipping it with a mod- 

 ern set of hand tools and machinery. 

 While this young man has not had the 

 advantages of a technical education, he 

 has acquired a vast amount of knowledge 

 from books and magazines, which has 



The workshop of C. 

 W. Richardson, of 

 Rugby, Va., which is 

 equipped with home- 

 made machines. In 

 the oval: A one and 

 one-half horsepower 

 gasoline motor built 

 by the young man. 



shaft revolving at right angles to the 

 keel. Two vertical shafts were fitted 

 with four-foot blades that revolved at 

 high speed ten feet below the surface. 

 The mow'ed kelp floats ashore, is taken 

 out and dried, and later is hauled to a 

 factory to be converted into fertilizer. 



enabled him to construct his shop and its 

 equipment. At the beginning he had at 

 his disposal a few hand tools, a small 

 foot-driven engine lathe and a buzz saw. 

 That he made the utmost use of this 

 crude equipment is proven by the fact 

 that he has already built a practical \y 2 



