LIST OF ILLUSTRATIONS. 



FIG. tAC,K 



1. UNFERTILISED HUMAN OVUM (NAGEL) ... 22 



2. SEGMENTATION OF A MAMMALIAN OVUM (AFTER V. 



BKXEDEN, QUAIN'S " ANATOMY ") 23 



3. CUBE TO SHOW THE MASS OF A HUMAN BODY IF EACH 



CELL HAD A VOLUME OF ONE CUBIC MICRON ... 24 



4. THE GERM LAYERS OF A MOLE (HEAPE, QUAIN'S 



"ANATOMY") 26 



5. LARVAE FROM A FRACTION OF A SINGLE EGG AMPHI- 



oxus (WILSON) 29 



6. MULTIPLE EMBRYOS FROM SEA-URCHIN EGGS (LOEB)... 30 



7. CURVE SHOWING RATE OF GROWTH IN GUINEA-PIGS 



(MINOT) 34 



8. THE RELATIVE PROPORTIONS OF A CHILD AND ADULT 



(LANGER) 48 



9. CURVES OF THE INCREASE IN WEIGHT AND STATURE 



BOTH SEXES (ROBERTS) 53 



10. ANNUAL ABSOLUTE INCREASE IN WEIGHT BOTH SEXES 



(STEPHENSON) 56 



I I. CURVE SHOWING EFFECT OF ILLNESS ON INCREASE IN 



WEIGHT AND STATURE (LORRAIN-JOULIE) 57 



12. CURVE SHOWING INCREASE IN WEIGHT IN AN INFANT 



DURING THE FIRST YEAR (MEEH) 6 1 



13. RATE OF INCREASE IN WEIGHT DURING THE FIRST 



TWENTY-FIVE YEARS BOTH SEXES (BASED ON 



ROBERTS' TABLES) 63 



14. MORTALITY CURVE (HENSEN, BASED ON FIGURES OF 



BOCKH) 77 



15. RATE OF INCREASE IN STATURE DURING THE FIRST 



TWENTY -FIVE YEARS BOTH SEXES (BASED ON 



ROBERTS' TABLES) 82 



1 6. PRINCIPAL SUBDIVISIONS OF THE ENCEPHALON MADE 



FOR THE STUDY OF ITS WEIGHT (MODIFIED FROM 



QUAIN'S " ANATOMY ") 91 



13 



