LABOEATOEY MANUAL OF HOETICULTUEE 



4. The Geneva seed-tester is a galvanized iron pan ten inches 

 wide, fourteen inches long, and three and one-half inches deep, 

 with a ledge three eighths of an inch wide along the sides. The 

 seeds are held in folds of cloth suspended on rods wiiich rest 

 on this ledge. Describe how the water is carried to the seeds. 



FIG. 1. Tile germinator, showing the different-sized holes in which the 

 seeds are placed for testing 



Make a drawing of the pan, three inches in length and of 

 proportional width, showing the ledge. Draw an end view of the 

 cloth. Give the depth of the pocket in inches, and measure the 

 length of each end 

 of the cloth from 

 the supporting-rod. 

 Why should the end 

 pieces of the cloth 

 be longer than the 

 depth of the pocket? 



FIG. 2. Geneva seed-tester 



supporting-rod for the cloth ; B, Canton flannel pocket ; C, opening 

 through which the supporting-rod passes 



[4] 



