Appendix Syllabus of Laboratory Work. 275- 



Plant protectors (279). Require each student to make 

 at least one plant protector, as shown in Fig. 67, patterns 

 for which are to be furnished. 



Kerosene emulsion (294). Let each student make a 

 given quantity of the kerosene emulsion after one of the 

 formulas given. 



Spraying pumps (304). Give at least one exercise to the 

 construction and use of spraying pumps and nozzles. 



Prevention of grain smuts (325). Require the students 

 to treat a quantity of oats to hot water as described. 



Bordeaux mixture (329). Require each student to make 

 a stated quantity of the Bordeaux mixture after the for- 

 mula given. 



Propagation by seeds (344). Instruct the students in the 

 use of the hand seed drill and broadcast sower. Let 

 them ascertain how much clover seed the broadcast ma- 

 chine is sowing per acre, by laying on the ground or 

 floor several sheets of paper, exactly one foot square, 

 painted with glycerine to catch the falling seeds. Hav- 

 ing learned the average number of seeds deposited per 

 square foot with a given rate of motion of the machine, 

 let the students compute the number of seeds sown per 

 acre, and reduce this to ounces. The number of clover 

 seeds in an ounce may be ascertained by dividing an 

 ounce of the seed among the students for counting. 



Propagation by layers (349). Instruct the students in 

 layering canes of the grape, and in mound-layering the 

 stems of the gooseberry. 



The bulb (352). Dissect bulbs of the onion, tulip, lily, 

 etc., ascertaining their structure and finding the embryo 

 flowers. 



The cold-frame (364). Require the students to make a 

 drawing and write a description of a cold-frame, from a 

 model furnished them. 



The hotbed (365). Let the students assist in making a 

 hotbed after the plan described. Also let them note the 

 temperature of the soil within the" frame on several suc- 

 cessive days after the bed is finished, and give them in- 

 struction in ventilating the hotbed. 



The propagating bed (368). Require the students to make a 

 propagating bed in the greenhouse, after the plan described. 



