AMS 21.1 ACCESSORY METAL STAINING SOLUTIONS 619 



21.1 Okada 1929 8542a, 7 :403 



formula: water 100, 40% formaldehyde 5, pyrogallol 2 



21.1 Oliveira 1936a 22575, 298:523 



formula: water 100, 40% neutralized formaldehyde 3, 0.01 uranium nitrate 



21.1 Oliveira 1936b 22575,298:523 



formula: water 70, 40% formaldehj^de 30, hydroquinone 0.3 



21.1 Paton 1907 14246, 18:576 



formula: water 80, hydroquinone 0.8, 40% formaldehyde 8 



21.1 Podhradszky 1934 23632, 50:285 



formula: water 95, 40% formaldehyde 5, pyrogallol 5 



21.1 Pritchard hst. Bohm and Oppel 1907 Bohm and Oppel 1907, 438 



formula: water 98, formic acid 1, amyl ale. 1 



21.1 Ranson 1914 766,46:522 



formula: water 95, 40% formaldehyde 5, pyrogallol 4 



note: The formulas of Gurdjian 1927 (11135, 43:1), Hewer 1933 (11025, 67:350) Huber 

 and Guild 1913 (703, 7:253) and Jahnel 1917 (14370, 42) are essentially the same. 



21.1 Rachmanov test. 1946 Roskin Roskin 1946, 257 



STOCK solutions: I. water 100, borax 0.8, sodium sulfite 4, II. water 100, p-aminophenol 



sulfate 0.4, hydroquinone 1, sodium sulfate (crystal) 0.8 

 WORKING solution: stock I 50, stock II 50. 

 note: It might be presumed that the "sulfate" in II was a misprint for "sulfite," but 



the Russian words are quite distinct. Roskin does not cite the original source. 



21.1 Rojas 1917 21344, 15:30 



formula: water 80, 40% formaldehyde 5, sodium sulfite, anhydrous 0.25, hydro- 

 quinone 1 

 note: Romeis 1948, 456 gives the third ingredient as "sulphal." 



21.1 Romanes 1916 11025, 80:205 



formula: water 100, sodium sulfite, crystal 10, pyrogallol 1, hydroquinone 1 



21.1 Schultze test. 1948 Romeis Romeis 1948, 418 



formula: water 100, hydroquinone 2.5, 40% formaldehyde 5 



21.1 Schultze and Stohr test. 1933 Cajal Cajal 1933, 363 



stock solution: water 100, hydroquinone 2.5, 40% formaldehyde 5 

 WORKING solution: stock 1, water 19 



21.1 Shanklin 1951 Cowdry 1952, 270 



formula: water 90, 40% formaldehyde 10, pyridine 1.3 



21.1 Stage 1936 20540b, 11:155 



formula: water 70, neutralized formaldehyde 30, hydroquinone 0.3 



21.1 Steiner 1937 11284,23:315 



formula: water 100, hydroquinone 5, 6% gum mastic in abs. ale. 0.2 



21.1 Steiner 1939 11284, 25:204 



formula: water 100, hydroquinone 5, 12.5% gum mastic in abs. ale. 0.5 



21.1 Steiner and Steiner 1944 11284,29:868 



stock solutions: I. 0.6% hydroquinone, II. 2.5% gum mastic in abs. ale. III. Dissolve, 

 with boiling, 0.2 silver nitrate and 0.165 sodium potassium tartrate in 100 water. 

 Cool, filter. 

 WORKING solution: stock I 60, stock II 20, stock III 20 



21.1 Ungewitter 1943 20540b, 18:183 



formula: water 100, p-mothylaminoplicnol svilfate 0.2, sodium sulfite (dessic.) 10, 

 hydroquinone 0.5, sodium borate 0.1 



