VEHICLES, ROLLERS, HARROWS AND MARKERS. 53 



the large ends and tapering beyond the braces. The 

 handles are common straight plow handles, that is, bent 

 only at the grip. Three-eighths bolts are large enough 

 for the frame. 



The center tooth should be permanently framed in, the 

 outside teeth being adjustable, work in the slot between 



Fig. 57. END VIEW OF LAND-MARKER. 



the long rails, and are held in place by two three-eighths 

 iron pins. They can be moved so as to mark from two 

 feet six to five feet. The rails should have seven-six- 

 teenth holes bored through them every three inches, 

 commencing at two feet six from center of middle tooth. 

 For shares use old points of shovel plows. The whiffle- 

 tree is held by a bolt which passes through the center 

 cross-bar. 



Figure 56 shows the adjustment of the teeth, one being 

 set at two feet six, the other four feet, also the position 

 of the thills, the whiffletree, the handles. The cross-rail 

 tenons at ends should fit in the end of slots and be bolted 



Fig. 58. MOVABLE TOOTH OF LAND-MARKER. 



fast with three-eighths bolts. The braces on thills and 

 handles are of iron, a quarter of an inch thick and an inch 

 wide, held by quarter-inch bolts. Figure 57 is an end 



