634 METHODS AND FORMULAS M 12.1 



12.1 Chevalier 1882 Chevalier 1882, 297 



formula: water q.s., gelatin 25, pyroligneous acid 10 



preparation: Soak the gelatin in water, drain, and melt. Add pyroligneous acid to 

 molten gelatin. 



12.1 Deane test. 1877 Fray Frey 1877, 135 



formula: water 30, gelatin 15, glycerol 55 

 preparation: Dissolve gelatin in water with heat and add glycerol. 



12.1 Dean test. 1880 Beale Beale 1880, 67 



formula: gelatin 30, honey 120, 95% ale. 15, creosote 0.2 

 preparation: Soak gelatin overnight. Drain. Melt on water bath. Heat honey on water 



bath. Mix with gelatin. Mix creosote in ale. and add to mixture when cooled to about 



35°C. Filter. 



12.1 Delepine 1915 4349,5:71 



formula: gelatin 5.2, sat. sol. arsenic trioxide 19, glycerol 71 

 preparation: Dissolve gelatin in hot arsenic solution, add glycerol. 



12.1 Fischer 1912 23632,29:65 



formula: water 100, sodium borate 2, gelatin 10, glycerol 17 



preparation: Dissolve ingredients with heat and maintain at 40°C. until the medium 

 remains liquid on cooling to room temperature. 



12.1 Forbes 1943 21400a, 62:325 



formula: water 40, gelatin 9, glycerol 50, phenol 0.6 



12.1 Geoffrey 1893 11074,7:55 



formula: water 100, chloral hydrate 10, gelatin 4 



12.1 Gerlach 1885 see P 12.3 Gerlach 1885 



12.1 Gilson test. 1905 Lee Lee 1905, 273 



preparation: Soak gelatin in water overnight, drain, and melt. To 50 of this add 50 

 glycerol and enough chloral hydrate to bring the total volume to 50. 



12.1 Guyer 1930 Guyer 1930, 96 



formula: water 50, gelatin 8, glycerol 50, egg white (fresh) about 10, phenol 0.25 

 preparation: Soak gelatin in water overnight. Dissolve with gentle heat. Add egg 



white to warm gelatin. Autoclave 15 minutes at 15 lbs. and filter. Add glycerol and 



phenol to filtrate. 



12.1 Heidenhain 1905 23632, 20:328 



formula: water 60, gelatin 13, glycerol 10, 95% ale. 20 

 preparation: Dissolve gelatin in water with glycerol. Add ale. drop by drop to solution. 



12.1 Kaiser 1880 3445, 1 :25 



formula: water 40, gelatin 7, glycerol 50, phenol 1 



12.1 Kisser 1935 23032, 51 :372 



formula: water 60, glycerol 50, gelatin 16, phenol 1 



12.1 Klebs /cs/. 1877 Frey Frey 1877, 135 



preparation: Soak isinglass in water, drain, and melt. Add enough glycerol to increase 

 volume by one half. 



12.1 Legros test. 1871a Robin Robin 1871, 371 



formula: water 20, gelatin 10, glycerol 30, sat. aq. sol. arsenic trioxide 30 

 preparation: Melt gelatin in water. IVIix glycerol and arsenic with molten gelatin. 



12.1 Legros test. 1871b Robin Robin 1871, 372 



formula: water 50, gelatin 10, arsenic trioxide 0.3, glycerol 30, phenol 0.1 

 preparation: Soak gelatin in 20 water some hours and melt. Dissolve arsenic in 30 

 water and add to molten gelatin. Add glycerol and phenol to mixture. 



