PLATING SOLUTION FOR ELECTRODES: Platinum chloride 1 - 3%, lead ace- 

 tate 0.02%. Use 4 volts for about 10 minutes. 



PYROGALLOL FLUID FOR ABSORBING OXYGEN: Water 500 ml., potassium 

 hydroxide 220 g., pyrogallic acid 15 g. 



POISON IVY PREVENTIVES: I. Saturated aqueous sodium thiosulfate. 



II. Ferric chloride 5 g. , glycerine 50 ml., water 50 ml. 



III. Ferric chloride 5 g., glycerine 5 ml., 50% alcohol 100 ml. 



RAFFEL'S FLUID: Water 1000 ml., potassium nitrate 0.5 g. , dibasic 

 potassium phosphate 0.06 g., magnesium sulfate 0.02 g., ferric chlo- 

 ride 0.001 g. 



RINGERS SOLUTIONS: Cf. table in Chapter VIII 



SALINE: (normal physiological) Water 1000 ml., sodium chloride 

 7 to 9 grams. For cold blooded animals, use 7 g. For warm blooded 

 animals use 9 g. 



SZOMBATHY'S FLUID: Gelatin 1 g. , water 100 ml., sodium silicate 

 0.02 g. , glycerine 15 ml. Dissolve the gelatin at 30 C. Cool and 

 filter through cloth. 



TOISSON'S MIXTURE: (a diluting fluid for blood) Water 160 ml., 

 sodium sulfate 8 g., sodium chloride 1 g., glycerine 30 ml, j methyl 

 violet 0.025 g. 



TYRODE'S SOLUTION: (for gut muscle, no advantage for heart muscle) 

 Water 1000 ml., sodium chloride 8 g. , potassium chloride 0.2 g., 

 calcium chloride (anhyd) 0.2 g., magnesium chloride 0.1 g., monobasic 

 sodium phosphate 0.05 g., sodium bicarbonate 1 g. , glucose 1 g. 



ULTRA-VIOLET LIGHT is removed by saturated aqueous sodium nitrate 

 or 10% CuS04»5 H2O. 



VAN DER CRONE'S SOLUTION: (green organisms) Water 1 liter, pot- 

 assium nitrate 1.0 g., magnesium sulfate and calcium sulfate each 

 0.5 g., calcium phosphate 0.25 g. , ferrous phosphate 0.25 g. Make 

 slightly acid or neutral with phosphoric acid. 



VAN'T HOFF'S SOLUTION: (artificial sea water) Sodium chloride 19.0 

 g. , magnesium sulfate 1.5 g., magnesium chloride 2.4 g., potassium 

 chloride 0.53 g. , calcium chloride (anhyd) 0.37 g., anhydrous salts 

 dissolved and made up to 1000 ml. with glass distilled water. Also 

 Cf. table in Chapter VIII. 



-12- 



