XXVi CONTENTS OF VOL. I. 



Page. 



The Blood. Its mechanical structure, serum, globules, 

 coagulation. Chemical constitution, serosity, clot, 

 colouring matter. . 345 



Aerating organs. Lungs and gills. Windpipe. Lar- 

 ynx. Changes produced in the air by respiration. 

 Changes in the blood, colour, density, specific 

 heat. Quantity of oxygen consumed, variable . 348 



Systemic vessels. Heart, aorta, arteries, capillary 



vessels. . - . 356 



Urinary system. Kidneys. Bladder. Urine. Calculi. 359 



CHAP. XIV. 



Peculiar Secretions. 



1. Luminousness. Animals which are luminous. Se- 



creting organs, how excited. . . 3^4 



2. Electricity. Electrical organs. Influence of the nerves. 36? 



3. Heat. Warm and cold blooded animals. Laws of 

 animal temperature. Power of generating heat or 

 cold. Possessed even by eggs. Influence of the 

 skin, muscles, nerves, digestion and respiration. 

 Morbid states. Origin of animal heat. Theories 

 of BLACK and CRAWFORD insufficient to explain the 

 phenomena. The idea of life inconsiderately ex- 

 cluded. . . . 376- 



CHAP. XV. 



Reproductive System. 



1. Viviparous Animals. Male organs, testicles, seminal 

 vesicles, prostate gland, Cowper's glands. Seminal 

 fluid. Female organs, ovaria, corpora lutea, ovi- 

 duct, uterus. Impregnation, myterious. Puberty. 

 Gravid uterus, placenta, chorion, amnios, liquor 

 amnii. AUantois. Foetus, how nourished. Deter- 

 mination of sex. Gestation. Birth. Milk, . 390- 



