CHAP. IV. 



CULTIVATORS. 



715 



notice all such forms. Fig. 265 is an illustration of Martin's patent 

 cultivator, manufactured by Martin's Cultivator Co., of Stamford. This 

 machine, which was awarded the first prize in the competitive field 

 trials of the Eoyal Agricultural Society at York in 1900, has rigid tines, 

 to which, however, elasticity is imparted by U-shaped springs attached 

 to them, and to the guide-blocks on the frame. When the machine is 

 at work, the springs keep the tines in a constant state of vibration, and, 

 if the latter encounter a very hard piece of ground, the springs can be 

 compressed only to the guide-blocks, so that the tines then have the 

 extra rigidity necessary to enable them to pass through the obstruction 



Fig. 265. Martin's Cultivator. 



more or less deeply. For some years, spring-tine cultivators, as opposed 

 to implements which have rigid tines, introduced from Canada and the 

 United States, had a great run in this country. Probably the best of imple- 

 ments of this type is the Massey-Harris cultivator (fig. 266), mamifactured 

 by the company of that name at Toronto, Canada, whose London agency 

 is at 54 Bunhill Row, E.C. This excellent implement has become very 

 popular in England. In common with some other cultivators, it can 

 have a seed-box attached to it, as shown in our illustration, so that corn 

 or seeds may be sown broadcast and covered in one operation. For the 

 heavy soils common in this country, however, rigidity in the tines is 



