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INTRODUCTION 1

DEFINITION. CLINICAL METHODS OF INVESTIGATION OF THE BLOOD 1

The quantity of the blood 2
Number of red corpuscles 4
Size of red corpuscles 12
Amount of haemoglobin in the blood 13
Specific gravity of the blood 17
Hygrometry 21
Total volume of the red corpuscles 21
Alkalinity of the blood 23
Coagulability of the blood 24
Separation of the serum 24
Resistance of the red corpuscles 25

THE MORPHOLOGY OF THE BLOOD 27

A. METHODS OF INVESTIGATION 29

[alpha]. Preparation of the dry specimen 32
[beta]. Fixation of the dry specimen 34
[gamma]. Staining of the dry specimen 36
Theory of staining 37
Combined staining 38
Triacid fluid 40
Other staining fluids 41
Recognition of glycogen in the blood 45
Microscopic determination of the distribution of the
alkali of the blood 46

B. NORMAL AND PATHOLOGICAL HISTOLOGY OF THE BLOOD 48

The red blood corpuscles 48
Diminution of haemoglobin equivalent 49
Anaemic or polychromatophil degeneration 49
Poikilocytosis 52
Nucleated red blood corpuscles 54
Normoblasts and megaloblasts 56
The fate of the nuclei of the erythroblasts 57
The clinical differences in the erythroblasts 61

THE WHITE BLOOD CORPUSCLES 67

I. NORMAL HISTOLOGY AND CLASSIFICATION OF THE
WHITE BLOOD CORPUSCLES 71

The lymphocytes