V 22.2-V 30 VARIOUS FORMULAS 06 1 



22.2 For Objects Not Requiring Further Manipulation 



22.2 Gage 1896 Gage 1896, 180 



formula: V 22.3 Gage 1896 50, acetic acid 25, water 25 



RECOMMENDED FOR: a thin layer is dried on a slide or coverslip. Objects are arranged on 

 this and then caused to adhere by breathing on them. 



22.2 Martin 1872a Martin 1872, 169 



formula: c'liloroform 80, gutta percha 20, tallow 5 



22.2 Martin 1872b Martin 1872, 169 



formula : rosin 75, beeswax 15, Canada balsam 5 



22.2 Meakin 1939 Microscope, 3:17 

 formula: water 12.5, dextrin 25, glycerol 75, phenol .3 

 preparation: Dissolve dextrin in water with heat. Add other ingredients. 

 use: attaching minute objects, particularly butterfly scales. 



22.3 Label Adhesives 



22.3 Gage 1896 Gage 1896, 179 

 formula: water 30, 95% ale. 30 acetic acid 30, gelatin 25, glycerol 10 

 preparation: Dissolve acetic acid in gelatin with occasional shaking at about 30°C. 



Add water, 95% ale, and glycerol in order given after solution of gelatin is complete. 



22.3 Marpmann 1886 23328, 2:151 



formula: water 70, 95% ale. 5, gum arable 18, gum tragacanth 5, glycerol 23, oil of 



thj^me 0.4 

 preparation: Dissolve gum arable in 35 water. Mix gum tragacanth and 95% ale. to 



make a smooth cream. Flood 35 water on tragacanth cream. Leave 3 hours. Combine 



with gum arable solution. Mix glycerol with the oil of thyme and combine with mixed 



gums. 



22.3 Martin 1872 Martin 1872, 171 



formula: water 30, gum arable 30, gelatin 15, glycerol 1.5, camphor 0.1 

 preparation: Dissolve gum arable in warm water. Let gelatin soak overnight. Drain. 

 Melt. Mix with warm gum. Add glycerol and camphor to mixture. 



23 OTHER PURPOSES 



23.1 Formulas 



23.1 Apathy 1912 23632, 29 :449 



formula: abs. ale. 50, ether, 50, celloidin 16, clove oil 33 



preparation: Dissolve ether and celloidin in abs. ale. Add clove oil to solution. 

 recommended for: attaching celloidin blocks to wood blocks. 



23.1 Rossi-Regaud test. 1927 Ruffini Ruffini 1927, 39 



formula: collodion US? 25, ether 35, abs. ale. 40 



note: The formula here given has been adjusted from that cited by Ruffini to com- 

 pensate for the difference between US and Italian pharmacopeial collodion. 



30 Injection Media 



There is a widespread delusion that the only materials which may be used for injec- 

 tion are those suspended in a colloid. Actually any material of a particle size too great to 

 pass througli the walls of the vessel may be used and will be held in place either in a 

 wholemount or in the course of sectioning, just as are the blood corpuscles. Injection 

 media should always be strained before use, since the entire injection may be destroyed 

 through one large particle choking off the major vessel through which the injection is 

 being inserted. The WTiter's preference is always for those injection methods, whereby 

 one inserts first one material in solution, and then, after it, another which will cau.se the 

 injection mass to precipitate in place. A solution of lead acetate, followed by one of po- 



