THE MICROSCOPE IN CHEMISTRY. 



105 



Cysto lutein, or the yellow fluid of an ovarian cyst, 

 shows with the lime-light three bands in blue, in the 



n IT 



Chloroform Suluiiou of Corpora Lutea. 



same position as the chloroform solution of lutein (Fig. 

 61). 



The serum of blood, etc., shows the bands of hsemato- 



A n B 



Cysto-Luteiu 1'ioui an Ovariau Cyst. 



crystalline and one or two doubtful bands, as in the figure 

 (Fig. 65). 



Dr. Richardson, of Philadelphia, gives the following 

 directions for examining blood-stains: Procure a glass 

 slide with a circular excavation, and moisten the edges 

 of the cavity with a small drop of diluted glycerin. Lay 



A n B C 



H TT 



Sero-Lutein. 



a clean glass cover, a little larger than the excavation, on 

 white paper, and put on it the smallest visible fragment 

 of blood-clot. With a needle, put on the centre of the 

 cover a speck of glycerin, not larger than a full stop (.), 



