BLOOD. 



(Ehrlich triple stain.) 

 (Prepared by Dr. I. P. LYON.) 



Fig. I. TYPES OF LEUCOCYTES. 



a. Polymorphonuclear Neutrophile. 6. Polymorphonuclear Eosinophile. c. Myelocyte 

 (Neutrophilic). d. Eosinophilic Myelocyte. e. Large Lymphocyte (large Mononuclear). 

 /. Small Lymphocyte (small Mononuelear). 



Fig. II. NORMAL BLOOD. 

 Field contains ono neutrophilo. Reds are normal. 



Fig. III. ANEMIA, POST-OPERATIVE (secondary). 



The reds are fewer than normal, and are deficient in haemoglobin and somewhat 

 irregular in form. One normoblast is seen in the field, and two neutrophiles and one 

 small lymphocyte, showing a marked post-hssmorrhagic anaemia, with leucocytosis. 



Fig. IV. LEUCOCYTOSIS, INFLAMMATORY. 



The reds are normal. A marked leucocytosis is shown, with five neutrophiles and 

 one small lymphocyte. This illustration may also serve the purpose of showing the 

 leucocytosis of malignant tumor. 



Fig. V. TRICHINOSIS. 

 A marked leucoeytosis is shown, consisting of an eosinophilia. 



Fig. VI. LYMPHATIC LEUKEMIA. 



Slight anaemia. A large relative and absolute increase of the lymphocytes chiefly 

 the small lymphocytes) is shown. 



Fig. VII. SPLENO-MYELOGENOUS LEUKAEMIA. 



The reds show a secondary anaemia. Two normoblasts are shown. The leucocytosis 

 is massive. Twenty leucocytes are shown, consisting of nine neutrophiles, seven myelo- 

 eytes, two small lymphocytes, one eosinophile (polymorphonuclear) and one eosinophilic 

 myeloeyte. Note the polymorphous condition of tha leucocytes, i.e., their variations 

 from the typical in size and form. 



Fig. VIII. VARIETIES OF RED CORPUSCLES. 



n. Normal Red Corpuscle (normocyte). 6, c. Anaemic Red Corpuscles, d-g. Poikilocytes. 

 h. Microsyte. i. Megaloeyte. j-n. Nucleated Red Corpuscles. j,k. Normoblasts. /. Micro- 

 blast, m. n. Megaloblasts. 



