MS 33.1 METAL STAINS 577 



33.1 Bensley and Bensley 1938a Bcnsley and Bensley 1938, 109 



preparation: Add 0.1 40% sodium hydroxide to 10 1% silver nitrate. Add just enough 

 ammonia to redissolve ppt. Dihite to 100 nd. 



33.1 Bensley and Bensley 1938b Bensley and Bensley 1938, 109 



preparation: Add 0.75 40% sodium hydroxide to 100 2% silver nitrate. Add just 

 enough ammonia to redissolve ppt. 



33.1 Bertrand and Guillain 1934 6630, 115:706 



preparation: To 7 10% silver nitrate add 27 5% sodium carbonate and then just 

 enough ammonia to dissolve ppt. Dilute to 100. 



33.1 Bielschowsky 1902 15058, 21 :579 



preparation: Add 0.4 40% sodium hydroxide to 48 2% silver nitrate. Add just enough 

 ammonia to dissolve the ppt. Dilute to 100 ml. 



33.1 Cajal 1920a hst. 1933 ips. Cajal nnd de Castro 1933, 253 



preparation: To 12 10% silver nitrate add 0.5 40% sodium hydroxide. Wash ppt. by 

 decantation. Suspend ppt. in 100 water. Add just enough ammonia to dissolve ppt. 



33.1 Cajal 1920b (ed. 1933 ips. Cajal and de Castro 1933, 253 



preparation: Dilute 25 MS 33.1 Cajal 1920a to 100. Add 1 pyridine. 



33.1 Cajal 1925 21344, 2:157 



preparation: Prepare 50 MS 33.1 del Rio-Hortega 1921 (below). Add 1.5 pyridine. 

 Dilute to 100. 



33.1 Cajal test. 1933 ips. Cajal and de Castro 1933, 319 



preparation: To 100 1% silver nitrate add just enough ammonia to redissolve the 

 ppt. first formed. 



33.1 del Carpio 1930 test. 1932 Findlay 11360, 52:155 



preparation: To 1 10% silver nitrate add 0.3 40% sodium hydroxide. Add just enough 

 20% ammonia to dissolve ppt. and dilute to 100. 



33.1 Cone and Penfield /t.s/. 1929 Anderson Anderson 1929, 90 



preparation: Add 5 10% silver nitrate to 20 5% sodium carbonate. Add just enough 

 ammonia to dissolve ppt. Dilute to 100. 



33.1 Craigie 1928 see MS 33.1 Zettnov 1891 (note) 



33.1 Davenport, Windle, and Beech 1934 20540b, 9:5 



preparation: Add 5 ammonia to 40 2% sodium hydroxide. Add just enough (about 40) 

 8.5% silver nitrate to give a slight permanent opalescence. 



33.1 Debauche 1939 see MS 33.1 Rogers 1931 (note) 



33.1 Fajersztajn 1901 test. 1933 Cajal and de Castro Cajal and de Castro 1933, 223 



preparation: To 100 2% silver nitrate add just enough ammonia to redissolve the i)i)t. 

 first formed. 



33.1 da Fano 1914 2190, 3:14 



preparation: Add 0.2 40% sodium hydroxide to 10 20% silver nitrate. Add just enough 

 ammonia to dissolve ppt. Dilute to 100. 



33.1 da Fano 1919 - 11454,52:1919 



preparation: As da Fano 1914 above but diluted to 80 instead of 100. 



33.1 Fontana 1912 7170, 55:1003 



preparation: To 100 0.25% silver nitrate add ammonia until ppt. first formed is just 

 redissolved. Then add 0.25% silver nitrate drop by drop until a faint permanent 

 opalescence is produced. 



33.1 Foot 1924 11284, 9:778 



preparation: Add 1 40% sodium hydroxide to 25 10% silver nitrate. Add just enough 

 ammonia to dissolve ppt. Dilute to 100. 



