4-4 OF DRILL-PLOUGHS. Part IV. 



'< This inilrument, although it may at the firft feem myfterious 

 " and intricate to the ignorant, yet I am confident it will anf'wer 

 " to every particular of what I have written of it; and any inge- 

 *' nious wheel- wright, joyner, or carpenter, may eafily make the 

 " fame with very little inllrudtion, and any ordinary ploughman 

 " may ufe it," 



S E C T. IL 

 Of the Sembrador. 



"iN the account given of this inftrument, in the Philofophical Tran- 

 -•■ faftions, N°. 60. it is juftly obferved, that the perfedlion of 

 agriculture confifls in fetting the plants at proportionable diftances, 

 and giving fufficient depth to the roots, that they may fpread ta 

 receive that nouriihment from the ground, which is neceflary ta 

 produce and ripen the fruit : but this has been fo far from being ob- 

 ferved, that all forts of feeds are fown by handfuls at random ; 

 whence it happens, that corn in fome places is fowed too thick, in 

 others too thin, and the greater part of it either not covered, or not 

 deep enough : whereby, it is not only expofed to be eaten by birds, 

 but alfo in cold countries to be fpoiled by frofl, and in hot climates, 

 bv the fun. On thefe confiderations, Don Jofeph de Lucatello in- 

 vented an inftrument, which, being faftened to the plough, at once 

 plows, fows and harrows ; whereby the fower's labour is faved, and 

 the grain, falling in order, and in the bottom of the furrow, re- 

 mains at the fame diftance under ground; fo that in five parts of 

 feed, four are faved, and the increafe becomes very confiderable. 

 The following is the defcription of this inftrument, 

 " Fig. 2. Plate IW . is a box of wood : abc dy the cover of that 

 part into which the corn is put, which is open in Jig. 3, at W : 

 efhgkl, the two fides that cover that part of the box where the 

 cylinder, which is ftuck round with three rows of little Ipoons, is 

 moved about to throw out the grains j which fides are taken off in 

 Jig. '\, that the cylinder RS, and the fpoons x xx may appear. The 

 internal fhape of thefe fides is expreffed in Jg. 4, where may be 

 feen the four triangular pieces pppp, and the triangular interflices 

 qq q, which ferve to convey the corn, carried up in the fpoons, and 

 difcharged at the top of the cylinder, to run out of the holes under- 

 neath the box. 



" T, is one of the wheels : V, the other end of the cylinder, on 

 which the other wheel is to be fixed. 



" This 



