1894 



THE MICROSCOPE. 



57 



Fine dropper. 

 Strips of blotting paper. 

 Heavy camel-hair pencil. 

 Saucer tor distilled water. 



B. — For mounting. 



Glycerine, C. P. 

 Shellac cement. 

 Gold size, quick drying. 

 Cover glasses. 

 Distilled water. 



C. — For Finishing. 



Cut-edged needle. Zinc-white cement. Benzole. 



King's Lacquer cement. Alcohol. 



II.— CELL MAKING. 



1. Date: write with lead pencil upon common white paper, 

 mucilage iirpon ivriting and paste upon upper edge of slide on 

 under side. 



2. Put slide upon turn-table. 



3. Ring with asphalt cement, width of intended cell. Allow 

 to set. 



4. Cell of hot paraffine and bees wax of thickness to suit. 



5. Ring of asphalt cement to cover cell substantially, espec- 

 ially inside and outside where attached to slip. 



6. Put aside to set and dry. 



III.— GLYCERINE MOUNTS. 



A. — WITHOUT CELL. 



1. Date as above. 



2. Clean slip upon turn-table. 



3. Ring of quick drying gold size 

 smaller than cover glass. 



4. With dropper, small quantity 

 of glycerine. 



5. Place object in position. 



6. Cover with glycerine, mound to 

 be slightly higher than ring. 



7. Put cover glass in position, 

 slanting. 



8. If air bubbles, rotate cover 

 glass with clean gum of (gum tipped) 

 pencil in direction of bubble to edge 

 until edge is reached. 



9. Continue as "with cell B 8," 

 &c. &c. 



B. — WITH CELL. 



1. Date as above. 



2. Place cell upon turn-table. 



3. Eing crest rim of cell with quick 

 drying gold size. 



4. Put in cell small quantity of 

 glycerine. 



5. Place object in position. 



6. Put over sufficient glycerine 

 giving a mound higher than cell. 



7. Place cover glass in position. 

 Press down with rubber of pencil. 



8. Remove surplus glycerine with 

 dropper. 



9. Remove the balance with strips 

 of blotting paper. 



10. Wash slide with distilled water 

 using camel-hair pencil. 



11. Dry slide with blotting paper. 



12. Use spring clip with care not to 

 move cover glass. 



13. Put aside to set and drv. 



