Marshall. ] 480 [April 5, 
Lithium Estimation. 
.1846 Grm. of the perfectly dried salt were treated with a few drops of 
concentrated sulphuric acid and evaporated to dryness in a platinum 
crucible. .0566 Grm. lithium sulphate were obtained = .0072 Li = 
3.90% Li. 
Calculated per cent. Found per cent. 
C,H, Cl OH COO = iia — 96:08 7% 
his We = 392% 3.90 % 
178.5 100.00 
ETHERS. 
The introduction of various hydro-carbon residues yielded me in most 
instances well crystallized and stable derivatives. The method pursued in 
all cases for the production of these compounds was to treat the silver salt 
of the acid with a monohalogen derivative of the hydro-carbon to be intro- 
duced): 6. s. 
C, H, Cl OH COO Ag + C, H, I= Ag'I + ©, H, Cl OH COO ©, H,. 
Methyl Iodide.--C H,I. This I prepared as follows: 50 Grms. iodine 
were mixed in a flask with 20 Grms. methyl alcohol and 5 Grms. amor- 
phous phosphorus gradually added. As heat is generated in this reaction, 
the flask was kept in a basin of cold water. The mixture was first sub- 
jected to distillation after having stood twelve hours. The first distillate 
was in all cases treated with sodium hydrate and calcium chloride, and then 
redistilled. 
Ethyl Iodide.—C, H, 1. Made this compound according to the direc- 
tions given for its production: 1 part amorphous phosphorus, 5 parts ethy] 
alcohol, and 10 parts iodine were treated as above. Boils at 72°C. 
Tsobutyl Iodide. —CH, I CH (CH,),. 50 Grms. iodine, 50 Grms. isobutyl 
alcohol, and 8 Grms. amorphous phosphorus were distilled together. A 
heavy, oily liquid boiling at 119°C. 
Acetyl Chloride. —CH, CO CL. Prepared this by distilling equal parts 
of anhydrous acetic acid and phosphorus penta chloride. 
Description of Ethers. 
Mertruyt MONOCHLORSALICYLATE. 
C; BH, CLO COO CE: 
Fusing point, 48°C. 
Silver monochiorsalicylate was heated together with an excess of methyl 
iodide in a sealed tube at 140°C for twelve hours, and upon opening the 
tube and expelling the excess of methyl iodide, a residual oil was left. 
Even when kept in a cold place solidification was not effected. As I 
