SPECIAL REAGENTS 45 



SPECIAL REAGENTS. 



LXVIII. 'SOLIDS.' 



1. Boracic acid. 7. Acid, oxalic. 13. Sodium causticum. 



2. Celloidin. 8. Potass, causticum. 14. Tannin. 



3. Acid, carbolic. 9. Potassium, Iodine. 15. Zinc (metallic). 



4. Ferrous sulphate. 10. Picric acid. 16. Paraffin. 



5. Iodine crystals. 11. Pyrogallic acid. 17. Grape sugar. 



6. Mercuric bichloride. 1 2. Sodium,bicarbonate.l8. Milk sugar. 



LXIX. LIQUIDS: 



1. Acetic acid (glacial). 6. Ether, sulphuric 11. Acid, nitric. 



anhydrous. 



2. Alcohol, absolute. 7. Ferric chloride. 12. Acid, sulphuric. 



3. Ammon. fort. liqr. 8. Formaline, 40 per 13. Water, distilled. 



cent, solution. 



4. Anilin oil. 9. Glycerine (Price's). 14. Celloidin. 



5. Chloroform. 10. Acid, hydrochloric. 15. Lysol. 



The purposes of the above reagents are described in the chapters 

 dealing with specific methods, etc., etc. 



LXX. DIFFERENTIATING AGENTS. 



1. Distilled water ; 2. Absolute alcohol ; 3. Acid alcohol, made 

 as follows : 



90 per cent, alcohol . . . 100 c. cm. 



Aquadistilli .... 200 

 and the desired percentage of either hydrochloric, nitric, sulphuric, 

 or oxalic acids. 



4. Anilin oil, 2 parts . . ) 

 Xylol, 1 part } 



5. Oil of cloves ; 6. Gram and Cladius's solutions (see 60, 61). 



LXXI. SPECIAL ACTIONS OF THE ABOVE REAGENTS 



1. Distilled water, remove surplus stain. 



2. Absolute alcohol, dehydrate and remove stain. 



3. The acid alcohols are used to decolorize cover-glass specimens 



