vi CONTENTS. 
PAGE 
§2. The Non-nitrogenous Nutrients.......sseceseseessesrscerers 114 
Effects on Proteid Metabolism ......cceeecoescecceeeers 114 
The Minimum of Proteids............eesseeeeceece 133 
Effects on Total Metabolism.........-ceescoseee pares es 144 
Mutual Replacement of Nutrients...... is acuge sa avedeve . 148 
Utilization of Excess—Sources of Fat.....+..+,-+++ 162 
CHAPTER VI. 
Tse INFLUENCE oF MuscuLAR EXERTION UPON METABOLISM........-- 185 
§1. General Features of Muscular Activity...........seeeeeeeees 185 
Muscular Contraction. .........c cee ere cece cen eceeeecs 185 
Secondary Effects of Muscular Exertion.............+-- 191 
§2. Effects upon Metabolism............- es RG Se SS FOE Ee MSE 193 
Upon the Proteid Metabolism. ............0seeeeee scene 194 
Upon the Carbon Metabolism........-- ita © oreo W ekaner ne aise 209 
PART II. 
THE INCOME AND EXPENDITURE OF ENERGY. 
CHAPTER VII. 
FORCE AND ENERGY..... 00s c cece cece een eeeneeeeoeee a sigrenie CESS 226 
CHAPTER VIII. 
Metuons oF INVESTIGATION ............2ceceeeevees AOC RE Io 234 
CHAPTER IX. 
Tur CoNSERVATION or ENERGY IN THE ANIMAL Bopy......... Bea ako 258 
CHAPTER X. 
Tue Foon as a Source or ENercy—METABOLIZABLE ENERGY........ 269 
§ 1. Experiments on Carnivora... 2.0.0... cc ccc eee cece eee eeeees 272 
§ 2. Experiments on Man......... cece cece cece teen eee eees 277 
§ 3. Experiments on Herbivora.................+ Sisases Sebo’ a 281 
Metabolizable Energy of Organic Matter................ 284 
Total Organic Matter........... cece cece ce ee ee eee 285 
Digestible Organic Matter...........--. cc cee eens 297 
Energy of Digestible Nutrients.............:c.cceeeees 302 
Gross Energy... .... cc ceeceee cee eeeeeens eames a 302 
Metabolizable Energy......csceccscssceeecccecees S10 
