140 APPENDIX. 



Milloris Reagent. 



To a given amount of metallic mercury add twice its 

 weight of HN0 3 (sp. gr. 1.42); after the evolution of gas has 

 ceased, warm slightly and then dilute the mixture with 2 vol- 

 umes of water. Allow this to stand at least 24 hours; then 

 filter. 



Morner's Reagent. 



1 volume formalin, 45 volumes distilled water and 55 

 volumes concentrated H 2 S0 4 ; thoroughly mixed. 



Nylander's Reagent. 



2 grms. bismuth subnitrate and 4 grms. Rochelle salts 

 digested on the water in 100 c.c. of 10 per cent NaOH; cool 

 and filter. 



Obermayer's Reagent. 



1 liter of fuming concentrated HC1 to which has been 

 added 2-4 grms. ferric chloride. 



Roberts' Reagent. 



1 volume concentrated HN0 3 mixed with 5 volumes of a 

 saturated solution of MgS0 4 . 



Spiegler's Reagent. 



8 grms. mercuric chloride, 4 grms. tartaric acid, and 

 20 grins, glycerol dissolved in 200 c.c. of water. 



Tanret's Reagent (Potassium-Mercuric-Iodide). 

 3.32 grms. potassium iodide dissolved in 20 c.c. of water; 

 to this add 1.35 grms. mercuric chloride also dissolved in 

 20 c.c. of water; dilute the mixture to 60 c.c. and mix with 

 it 20 c.c. glacial acetic acid. 



