10 



CONTENTS 



170. 

 171. 

 172. 

 173. 

 174. 

 175. 



176. 



177. 



178. 



179. 



180. 

 181. 

 182. 

 183. 



PROBLEM 



156. To determine some means of selection of fruit trees from the economic 



standpoint ......... 



157. How hybridization is accomplished in flowering plants 



158. Other methods used in plant breeding .... 



159. To determine the working of Mendel's Law 



160. To determine some means of bettering, physically and mentally, the 



human race ......... 



161. Are good mental parts or qualities capable of transmission from 



parent to child ? . 



162. Does control of our environment have anything to do with the prob 



lem of race betterment ?...... 



XVIII. The Human Machine and its Needs 



163. To show that the human body is made up of cells 



164. To find out some functions of the skin .... 



165. To study the use of the muscles ...... 



166. To study the structure and uses of the skeleton . 



167. To find the relation of muscles to bones in the human body 



168. To study the joints of the human body .... 



169. To get a preliminary survey of the internal structure of the human 



body 



PAGE 



XIX. Foods and Dietaries 



How to determine the nutritive value of food 



The use of the bomb calorimeter (Optional) 



To find the value of food as a tissue builder compared with its cost 



To find the value of food as a source of energy compared %vith its price 



To find my daily Calorie requirement .... 



To find the proportion of protein, fat, and carbohydrate needed in 



my daily Calorie requirement ..... 

 To obtain my daily dietary with the 100 Calorie table of Fisher and 



to make the necessary corrections in my dietary . 

 To compare your day's total Calories with the estimated needs of a 



person of your age doing the kind of work which you do 

 To find the relation of the value of food to its cost in the family 



dietary ........... 



To study some forms of food adulteration and some means of detect 



ing adulterants 



To determine the effect of alcohol upon raw white of egg . 



To deternnne the amount of alcohol in some patent medicines . 



To test for acetanilid and to know some patent medicines containing it 



What are tlie harmful materials formed in catarrh cures and soothing 



sirups? , . . , . 



215 



