71
The large mononuclear leucocytes 73
The transitional forms 74
The polynuclear leucocytes 75
The eosinophil cells 76
The mast cells 76
Pathological forms of white blood corpuscles 77
The neutrophil myelocytes 77
The eosinophil myelocytes 78
The neutrophil pseudolymphocytes 78
Stimulation forms 79

II. ON THE PLACES OF ORIGIN OF THE WHITE BLOOD CORPUSCLES 81

[alpha]. The spleen 84
[beta]. The lymphatic glands 100
[gamma]. The bone-marrow 105

III. ON THE DEMONSTRATION OF THE CELL-GRANULES,
AND THEIR SIGNIFICANCE 121

History of the investigation of the granules 121
Since Ehrlich. 123
Methods of demonstration 124
Vital staining of granules 124
The Bioblast theory (Altmann) 128
The granules as metabolic products of the cells (Ehrlich) 130
Secretory processes in granulated cells 134

IV. LEUCOCYTOSIS 138

Biological importance of leucocytosis 138
Morphology of leucocytosis 142
[alpha]. 1. Polynuclear neutrophil leucocytosis 143
Definition 143
Clinical occurrence 144
Origin 144
[alpha]. 2. Polynuclear eosinophil leucocytosis,
including the mast cells 148
Definition 149
Clinical occurrence 150
Origin 154
[beta]. Leukaemia ("mixed leucocytosis") 167
Lymphatic leukaemia 170
Myelogenous leukaemia 171
Morphological character 187
Ori