V 41.1-V 51.1 VARIOUS FORMULAS 667 



method: soak slides and covers for about a day; wash thoroughly in running water 

 note: The cleaning solution may be used as long as any crystals remain at the bottom. 



41.1 trisodium phosphate 



method; soak slides overnight in a 15% solution of trisodium phosphate. Rinse and dry. 



V 50 Miscellaneous Formulas 



51.1 Formulas 



51.1 Andre text. 1942 Langeron Langeron 1942, 930 



formi'la: water 'M), acetic acid ;30, chloral hydrate 40 

 RECOMMENDED FOR: rcswelling dried arthropods, 



51.1 Baker 1941 11300,61:75 



formula: water 36, 95% ale. 54, glycerol 10 

 RECOMMENDED FOR: softening materials already embedded in paraffin which have 



proved too tough to cut. The block should be soaked until experiment shows that the 



material will cut. 



51.1 Foster and Gifford 1947 20540b, 22:129 



formula: 95% ale. 80, glycerol 10, hydrofluoric acid 10 

 RECOMMENDED FOR: softcning refractory plant materials before sectioning. 



51.1 Gifford 1950a 20540b, 25:161 



formula: water 36, 95% ale. 54, acetic acid 10 



RECOMMENDED FOR: Softening paraffin-embedded plant tissues after the block has been 

 trimmed to expose a surface of the material. 



51.1 Gifford 1950b 20540b, 25:161 



formula: water 32, 95% ale. 48, acetic acid 20 

 RECOMMENDED FOR: as above, but with very refractory material. 



51.1 Guyer 1930 Guyer 1930, 30 



formula: abs. ale. 55, ether 45, pyroxylin 7, camphor 0.3 



preparation: Dissolve ether in abs. ale. with pyroxylin. Add camphor to solution. 

 RECOMMENDED FOR: Scaling, by dipping, stoppers, or corks of vials. 



51.1 Hetherington 1922 11428,9:102 



formula: water 25, lactic acid 50, 95% ale. 25 

 RECOMMENDED FOR: rcswelling of dried plant specimens. 



51.1 Langeron 1942 Langeron 1942, 8.52 



formula: paraffin 65, rubber 35 

 RECOMMENDED FOR: bottom of Small dishes for dissection. 



51.1 Lendrum 1944 20540b, 19:143 



formula: glycerol 90, aniline 10 

 RECOMMENDED FOR: as V 51.1 Baker 1941. 



51.1 Schmorl 1928 Schmorl 1928, 90 



formula: anhydrous chloroform 32, oil of thyme 16, oil of cedarwood 32, abs, ale. 8, 



phenol 8 

 RECOMMENDED FOR: storage of celloidin blocks 



51.1 Vesseler 1891 23632, 7:461 



formula: beeswax 60, Venice turpentine 30 

 RECOMMENDED FOR: wax for Supporting specimens. 



61.1 Wilson 1946 Tech. Bull, 7 :57 



formula: abs. ale. 100, celloidin 4, gum mastic 0.625 



preparation: Dissolve celloidin in 75 ale, 25 ether. Evaporate ether and add gum dis- 

 solved in 25 ale. 

 RECOMMENDED FOR: vamishing edge of microtome knife to prevent striations in sections 

 caused by minute nicks in edge of knife. 



