^28 METHODS AND FORMULAS S 41.1 



mixtures were developed. Thus many of them consist of mixtures of phenol with some 

 clearing agent notoriously sensitive to water. Phenol is an excellent coujiler and permits 

 xylene to be used with, say, 70% alcohol. These mixtures are included in the present 

 place only because they are widely recommended in the literature. The modern worker 

 would be well advised to seek in the tables given above some pure solvent having 

 characteristics of the mixtures given below, and to substitute this pure solvent for the 

 mixture which he had intended to use. 



41.1 Formulas 



41.1 Amann 1899a 23632,16:38 



formula: chloral hydrate 50, p-chlorphenol 50 



41.1 Amann 1899b 23632,16:38 



formula: chloral hydrate 60, phenol 30 



41.1 Apathy test. Guyer 1930 cit. Kornhauser Guyer 1930 65 



formula: chloroform 30, origanum oil 30, cedar oil 30, abs. ale. 7.5 phenol 7 5 

 recommended for: clearing celloidin blocks prior to double embedding. 



41.1 Apathy test. 1942 Langeron Langeron 1942, 438 



formula: chloroform 32, oil of thyme 16, oil of cedar 32, alcohol 8, phenol 8 



41.1 Cole 1903 Cross and Cole 1903, 193 



formula: phenol 100, glycerol 3 

 RECOMMENDED FOR: clearing arthropod material before mounting in glycerol. 



41.1 Cole 1947 20540b, 22 :103 



formula: xylene 60, toluene 12, beechwood 12, aniline 12 



41.1 Dunham test. 1937 Gatenby and Cowdry Gatenby and Cowdrv 1937 108 



formula: white oil of thyme 75, clove oil 25 ' 



RECOMMENDED FOR: clearing celloidin sections. 



41.1 Eycleshymer test. 1915 Chamberlain Chamberlain 1915 36 



formula: cedar oil 30, bergamot 30, phenol 30 



41.1 Gage 1890 21400a, 12:120 



formula: turpentine 60, phenol 40, 95% ale. q. s. to complete solution 



41.1 Gage 1896a Gage 1896, 176 



formula: xylene 75, castor oil 25 

 RECOMMENDED FOR: clearing and hardening nitrocellulose blocks. 



41.1 Gage 1896b Gage 1896, 176 



formula: turpentine 70, phenol 30 



41.1 Gatenby and Painter 1937 Gatenby and Cowdry 1937, 108 



formula: creosote 40, bergamot oil 30, origanum oil 10, xylene 20 

 RECOMMENDED FOR: clearing celloidin sections. 



41.1 Gothard test. 1929 Anderson Anderson 1929 128 



formula: creosote 50, cajuput 40, xylene 50, abs. ale. 160 



41.1 Maxwell 1938 20540b, 13:93 



formula: oil of cedar 30, oil of thyme 40, xylene 15, abs. ale. 15 



41.1 Minot test. 1928 Schmorl Schmorl 1928 162 



formula: oil of thyme 80, oil of cloves 16 



41.1 del Rio-Hortega test. 1938 Mallcry Mallory 1938 249 



formula: xylene 80, phenol 10, creosote 10 ' 



41.1 Weigert 1891 7276, 17:1184 



formula: xylene 35, aniline 65 



