10 CONTENTS 



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



standpoint 1V9 



157. How hybridization is accomplished in flowering plants . . 180 



158. Other methods used in plant breeding 181 



159. To determine the working of Mendel's Law ... . 181 



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



human race 



161. Are good mental parts or qualities capable of transmission 



parent to child ? . . . .... 



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



lem of race betterment ?...... 



from 

 prob- 



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 



XIX. Foods and Dietaries 



182 

 183 



187 



187 

 188 

 188 

 189 

 190 

 190 



190 



194 



170. How to determine the nutritive value of food 195 



171. The use of the bomb calorimeter (Optional) . . . . 195 



172. To find the value of food as a tissue builder compared with its cost . 197 



173. To find the value of food as a source of energy compared with its price 198 



174. To find my daily Calorie requirement . . ... 202 



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



my daily Calorie requirement ... . 203 



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



to make the necessary corrections in my dietary . 204 



177. 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 . .211 



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



dietary 211 



179. To study some forms of food adulteration and some means of detect- 



ing adulterants .... . . 212 



180. To determine the effect of alcohol upon raw white of egg . . 213 



181. To determine the amount of alcohol in some patent medicines . .214 



182. To test for acetanilid and to know some patent medicines containing it 214 



183. What are the harmful materials formed in catarrh cures and soothing 



sirups ? 215 



