phagocytosis, fertilization, and other phenomena 

 of the living parasite, it is necessary, however, to 

 be able to make good wet films, and the points of 

 importance in the preparation of these will be 

 described. 



The Preparation of Dry Films 



I 



The simplest and by far the best way of 

 making films is by the use of no other apparatus 

 than — 



1. A straight surgical needle about two 



inches in length. 



2. Clean glass slides. 



To Clean Slides 



Slides should be dipped in water and rubbed 

 dry and clean with a soft cloth, e.g., a clean hand- 

 kerchief. To ensure the best results it is well to 

 heat the slides in the flame of a spirit lamp, or 

 smokeless paraffin lamp, and allow them to cool on 

 a sheet of clean paper. For ordinary purposes this 

 is quite unnecessary. But if a perfectly clean slide 

 is required, then heat it ' red hot ' over a flame. 

 In this way grease is completely removed. 



Before proceeding to take specimens of blood, 

 the prepared slides may be placed in a small 

 pocket slide box or wrapped in a sheet of clean 

 dry white paper. A packet of half-a-dozen pre- 

 pared slides wrapped in a sheet of note-paper, 

 afterwards transfixed with the needle is a most 

 convenient form of carrying the necessaries for 

 taking specimens of blood. The needle should be 

 an ordinary triangular-pointed, straight surgical 

 needle. (It is best to nip off the eye with pincers). 



