CONTENTS ix 



CHAPTER V. 



> 

 NORMAL HJEMATOLOGY. 



PAGE 



Introduction and General Directions . . . . ... . . . 128 



I. The Counting of the Blood Corpuscles . . . . . . . . 130 



A. To Count the Red Blood Corpuscles . . . . . ... 132 



B. To Count the White Blood Corpuscles . . 135 



C. To Count both Red and White Corpuscles at the Same Time . 136 



D. Centrifugalization of the Blood. To Determine the Relative 



Volume of Red Corpuscles and Plasma. To Estimate the 



Number of Red Corpuscles from Their Volume .... 137 



II. The Estimation of the Percentage of Coloring Matter in the Blood . 138 



A. FleischPs Hsemometer 139 



B. Gowers' Haemoglobinometer . 142 



C. Dare's Hsemoglobinometer 144 



D. Tallquist's Hsemoglobinometer 145 



E. Estimation of Haemoglobin by Finding the Specific Gravity . 146 



III. Examination of Fresh Blood 148 



A. Coagulation of Normal Blood . . . . 148 



B. Microscopic Examination of Blood . . . . '. 1 .. . 148 



C. Spreading Blood for Staining . . . . ... . \ . . 150 



D. Staining Blood Films .........;,.. 153 



E. Differential Counting of the Cells 153 



IV. Staining Bone-marrow J . . 155 



CHAPTER VI. 



DIGESTION AND ABSORPTION. 



Digestion . . ... . . !.,,.. '. . 156 



I. The Carbohydrates .' . . 157 



II. Salivary Digestion . . .'.-.. . : ._. ' 159 



III. TheProteids 161 



IV. (a) Diffusibility of Proteids. (6) Milk . ... . . . , . 164 



V. Gastric Digestion '. . . . . . .....' 167 



VI. Gastric Digestion (continued) . . . . . . . . . . . 170 



VII. Gastric Digestion (continued) . . . . . . . . ... 171 



VIII. The Properties of Fats . . .... . . . .. : . . . . 172 



IX. Intestinal Digestion . . . . . ... . . . ... 174 



Absorption 176 



, CHAPTER VII. 

 VISION. 



I. Dissection of the Appendages of the Eye .... .178 



II. Dissection of the Eyeball 179 



III. Physiological Optics 181 



IV. To Determine the Focal Distance of a Lens . 183 

 V. To Locate Experimentally in the Mammalian Eye the Cardinal 



Points of the Simple Dioptric System 185 



