24 BULLETIN 521, U. S. DEPARTMENT OF AGRICULTURE. 
the seed out upon a clean floor and sprinkle thoroughly with a solu- 
tion of 1 pound of formalin to 40 gallons of water. The seed should 
be shoveled over until it is well moistened and then covered with 
blankets or canvas and allowed to stand for several hours. It can 
then be sown at once or spread out in a clean place to dry. 
Note. — In connection with this exercise it will be profitable to have a germi- 
nation test made of samples taken before and after treatment to ascertain if 
the formalin has any effect upon the vitality of the seed. 
Lesson 12. — Wheat. 
Special references. — 
Improvements in Wheat Culture, U. S. Dept. of Agriculture Year- 
book, 1896. 
Winter Wheat in the Cotton Belt, Office of Secretary of Agriculture, 
Special Circular. 
Growing Hard Spring Wheat, Farmers' Bulletin 678. 
Varieties or Hard Spring Wheat, Farmers' Bulletin 680. 
Lesson 13. — Rye. 
Special reference : Rye in the Cotton Belt, Office of Secretary of Agricul- 
ture, Special Circular. 
Lesson 14. — Barley. 
Special references. — The following Farmers' Bulletins: 427, Barley Cul- 
ture in the Southern States, 443, Barley : Growing the Crop ; 518 
Winter Barley. 
Lesson 15. — Rice. 
Special references. — The following Farmers' Bulletins : 417, Rice Culture ; 
673, Irrigation Practice in Rice Growing. 
Exercise 25. — Collection and Study of Small Grains. 
Purpose: To familiarize students with varieties of grains suited 
to local conditions. 
Directions : The collection and study of small grains may be car- 
ried on as extensively as time permits and as the agricultural interests 
of the students and community demand. The school should have an 
exhibit of types and varieties of grains as a part of its museum and 
laboratory equipment. While such exhibits may be purchased, these 
should be used chiefly as a means of suggestions for work to be done 
by students and as an aid in checking upon the naming of varieties. 
Each student may be assigned the collection and mounting of 10 
varieties of a certain kind of cereal. Directions for this work may 
be obtained in Farmers' Bulletin 586, Collection and Preservation of 
Plant Material for Use in the Study of Agriculture. 
Record and report: Students should make use of printed outlines 
in writing descriptions and reporting upon quality. 
Note. — This work may include the use of a score card in judging those grains 
most important in the district. 
