138 FARM AND SCHOOL PROBLEMS. 



3. If the average bale of cotton weighs about 500 pounds, what was 

 the weight of the cotton crop of 1911, and what was the average price 

 per pound? 



4. If the average price for picking cotton is 60c per hundred, what 

 does the picker earn if the average day's labor is 200 pounds of seed 

 cotton per day, and what did it cost to pick the crop of 1911? 



Cotton is a valuable crop for the fiber or lint produced 

 which is used for manufacturing cloth and for the seeds which 

 are used for manufacturing purposes and also as food for live- 

 stock. 



Cotton and wool are the two chief products that clothe the 

 people of the world. Cotton is by far the most important. Cot- 

 ton is spoken of in ancient history as a tree wool. 



5. If there is on an average two pounds of cotton seed for every 

 pound of cotton lint produced what was the total number of pounds of 

 cotton seed produced in 1911? 



6. If the value of cotton seed is 1.5c per pound, what was the 

 value of the cotton seed crop in 1911 ? 



Cotton seed meal mixed with hulls is used very extensively 

 for dairy rations. (See dairy rations under the chapter on Feed- 

 ing Dairy Cows.) 



One ton of cotton seed meal contains about three times as 

 much protein as wheat bran. 



The fertilizing value of cotton seed meal is given as follows : 



Nitrogen 135.8 pounds per ton valued at $27.00 



Phosphoric acid 57.6 pounds per ton valued at 2.80 



Potash 17.4 pounds per ton valued at .87 





Total value ;. '. $30.67 



Fof use of cotton seed meal as a fertilizer see chapter on 

 fertilizers. 



The Cotton Plant. 



Some of the most important of the desirable qualities of the 

 cotton plant are the (a) length, (b) fineness, (e) strength, (f) 

 uniformity of color. 



The problem of breeding cotton for certain characteristics, 

 is much the same as in the improvement of other crops. The- 



