- 23 - HISTOLOGY. 



38. Blood. Make a fresh preparation of toad's blood in the same way as in number 7 

 using 0-65 per cent NaCl instead of 0-9. Draw the red and white blood corpuscles. 



39. Lymph. By means of a capillary tube remove some of the lymph from one 

 of the lymph hearts. Make a fresh preparation of this lymph and draw examples of 

 lymphocytes under the high power. 



