62 MICRO-ORGANISMS. 



(v.) SULPHURIC ACID AND ALCOHOL. 



Sulphuric Acid (sp. gr. 1-84), 10 cc. ; Alcohol (90 p. c.), 

 90 cc. 



(vi.) SULPHURIC ACID. 



Sulphuric Acid (sp. gr. 1-84), 10 cc. ; Distilled Water, 

 30 cc. 



(vii.) NITRIC ACID. 



Pure Nitric Acid (sp. gr. 1-42) 10 cc. ; Distilled Water, 

 30 cc. 



(viii.) SULPHANILIC AND NITRIC ACID. 



Sulphanilic Acid (saturated aqueous solution), 30 cc. ; Nitric 

 Acid (sp. gr. 1'42), 10 cc. 



(ix.) DILUTED ACETINE (CHLORHYDRIN) BLUE. 



Acetine Blue (Chlorhydrin Blue), 10 grms. ; Absolute 

 Alcohol, 10 cc. ; Distilled Water, 90 cc. 



Chlorhydrin Blue mentioned by Kiihne is not obtainable 

 commercially. Acetine Blue appears to be the same article. 



(x.) PLUORESCINE. 



Alcoholic Solution. Yellow Fluorescine, 1 grm., rubbed 

 in a mortar with 50 cc. of Absolute Alcohol; the whole poured 

 into a bottle and allowed to settle. 



