638 METHODS AND FORMULAS M 22.1-M 24.1 



22.1 Wilson 1945 20540b, 20:133 



formula: Venice turpentine 25, phenol 50, proprionic acid 35, acetic acid 10, water 20 

 preparation: As M 22.1 Zirkle 1940. 



22.1 Zirkle 1940 20540b, 15:147 



formula: water 25, acetic acid 15, proprionic acid 35, phenol 55, Venice turpentine 20, 



ferric nitrate 0.5, carmine 0.5 

 preparation: Mix the Venice turpentine with the proprionic acid. Add the phenol and 

 acetic acid. Then add the water, in which the ferric nitrate has been dissolved, slowly 

 and with constant stirring. Incorporate the dye in this mixture. 

 note: See also M 31.1 Zirkle 1940. 



M 23 GUM SANDARAC MEDIA 



23.1 Formulas 



23.1 Armitage 1939 Microscope, Z:215 



preparation : To 100 of a syrupy filtered solution of gum sandarac in dioxane add the 

 fluid produced by the mutual solution of 3 salol and 2 camphor. 



23.1 Buchholz 1938 20540b, 13:53 



formula: oil of eucalyptus 60, paraldehyde 30, gum sandarac to give required consist- 

 ency 



23.1 Cox 1891 1780,37:16 



formula: alcohol 150, sandarac 150, turpentine 60, camphor 30, lavender oil 45, castor 



oil 0.5 

 preparation: Dissolve sandarac in ale. Dissolve camphor in turpentine and then mix in 



ale. solution. Add oils to mixed solutions. 



23.1 Denham 1923 Camphoral — auct. 11360,43:190 



stock i: chloral hydrate 50, camphor 50 



preparation of stock i: Grind ingredients in a mortar till solution complete. 

 stock II : gum sandarac q.s., isobutyl ale. q.s. 

 PREPARATION OF STOCK II : Make a thin solution of the ingredients. Shake with activated 



charcoal. Filter. Evaporate to a thick syrup. 

 WORKING medium: stock I 60, stock II 30 



23.1 Gilson 1906 Euparal — compl. script. 6011,23:427 



note: This is a proprietary mixture of secret composition and cannot be further noticed. 

 The reference cited does not disclose the composition. 



23.1 Mohr and Wehrle 1942 20540b, 17:157 



formula: camsal 10, gum sandarac 40, eucalyptol 20, dioxane 20, paraldehyde 10 

 note: Camsal is produced by the mutual solution of equal quantities of camphor and 

 phenyl salicylate (salol). This medium may be diluted with dioxane. It may be 

 colored green (in imitation of green euparal) by adding a solution of copper oleate in 

 eucalyptol. 



23.1 Shepherd 1918 21400a, 37:131 



formula: sandarac 30, eucalyptol 20, paraldehyde 10, camsal 10 

 note: Camsal is a mixture of equal parts camphor and phenyl salicylate. Shepherd 

 (loc. cit.) recommends dissolving the sandarac in 150 abs. ale, filtering under an- 

 hydrous condition and re-evaporating to dryness. 



24 OTHER ALCOHOL-MISCIBLE MEDIA 



24.1 Formulas 



24.1 Hanna 1949 11360,69:25 



formula: sulfur 40, phenol 100, sodium sulfide 2 



24.1 SeUer 1881 21400a, 3 :60 



formula: Canada balsam 40, abs. ale. 60 



