LESSONS ON POULTRY FOR RURAL SCHOOLS. 17 
water and clean food will prevent many troubles if the pupils persist 
in such practice. Neglect to open windows during* the day results 
in high temperature and poor ventilation, rendering the fowl sus- 
ceptible to colds, roup, and other troubles. Help pupils to get 
advice as to any diseases which appear. 
Correlations .—The school course in physiology and hygiene includes 
topics in relation to digestion, respiration, ventilation, and general 
sanitation. Many of these principles apply equally well to poultry 
and other animals, and this correlation will prove helpful to both 
subjects. If a poultry club is to be organized, have the pupils write 
letters applying for membership, information, etc. 
LESSON SEVEN. 
SUBJECT: EGG SELECTION. 
JANUARY. 
Topics for study. — .(1) Separation of breeding flock from layers. 
Elimination of males from laying flock. (See Hg. 10.) Frequent, 
regular, careful collection of eggs. 
(2) Market eggs: What to select. Clean, uniform eggs. Test 
any doubtful eggs. Avoid freezing. Grade to conform to best 
EGGS 
EGGS ■ 
&9. 7/ G.+ 
■■H /.OSS AT /v?/PA7 Vfflfffffffa //V TOWA/ I I //V 7-/P/1A/&/T 
Fig. 10.— Horizontal graph teaching the desirability of infertile eggs for market. 
local market. Show the loss resulting when a few low-grade eggs 
lower the grade of a whole case. How shall we dispose of the culled 
or defective eggs ? 
(3) Eggs for incubation: The source. Selection and breeding. 
Use only high-class fowls. Begin now to grade up to pure breds. 
Pure-bred males from other flocks are desirable. Necessity of vig- 
orous constitutions. Handling the eggs. When begin to save for 
hatching? How long may they be kept? What temperature is 
best ? It is much better to buy eggs for hatching than to use eggs 
from scrub fowls. 
References.— Farmers' Bulletins 528; 562; 287, p. 40; 594, pp. 
1-4; 682. The State agricultural college is the best authority con- 
cerning the climate and other local factors which may determine the 
time for hatching. Consult State agricultural college bulletins. 
61395°— Bull. 464—16 3 
