i. e., if 965 c.c. of the decinormal solution is diluted to 1000 c.c. then it would require 5.85 grams of salt, or I c.c. of the decinormal nitrate of silver solution corresponds to 0.00585 g. NaCl, or 0.00355 g. Cl.

Ammonia Fluid.—1 part of ammonia water specific gravity 0.90 and 2 parts of water.

Sodium Phosphate Solution.-For precipitating magnesia. One part of C. P. sodium phosphate in 10 parts of distilled water. Ammonium Carbonate Solution.-1 part of C. P. ammonium carbonate in 4 parts water; add I part ammonia fluid.

Ammonium Chloride Solution.—To keep the magnesia in solution when precipitating lime. One part C. P. chloride of ammonia in 8 parts water.

Ammonium Oxalate Solution.-1 part C. P. ammonium oxalate in 25 parts water.

Barium Chloride Solution.-For precipitating sulphates. One part C. P. barium chloride in 10 parts of water.

Lead Acetate Solution.-For sulphur test. Concentrated solution.

Silver Nitrate Solution.-For qualitative tests. One part of silver nitrate in fifty parts of water.

Potassium Ferrocyanide Solution.-For volumetric estimation of sugar. One part in twelve parts of water.

Potassium Chromate Solution.-For chlorine titration. Dissolve one part of C. P. potassium chromate in ten parts of water. Potassium Sulphide Solution.-For albumen determination: Dissolve 40 grams of potassium sulphide in one liter of distilled water.

Acetic Acid Solution.-For volumetric estimation of sugar. One part glacial acetic acid in ten parts of water.

Chloride of Iron Solution.-For qualitative test. One part in ten parts of water.

Decinormal Iodine Solution.-Dissolve 12.7 grams of iodine and twenty-five grams of potassium iodide in distilled water, and dilute to one liter.

Oxalic Acid Solution

Normal.-Dissolve 0.63 grams oxalic

acid C. P. in distilled water and dilute to one liter.

Permanganate of Potash Solution 10 Normal.-Dissolve 0.34 grams permanganate of potash in distilled water and dilute to one liter.

In order to test the above two solutions, take 20 c.c. of the oxalic acid solution, add 5 c.c. sulphuric acid (1:4), and heat to boiling. Run in slowly from a burette the permanganate of potash solution until it assumes a distinct reddish tinge. The solution, in order to be correct, should require 20 c.c. Suppose, however, it required 19.8 c.c., and we have 950 c.c. of the solution left, then dilute in the following proportion:

i. e., add 9.5 c.c. of distilled water to the permanganate of potash solution.

LIST OF APPARATUS.

Air Bath (copper) and Support; not smaller than 8x10; used for drying purposes.

Aspirator Bottle, one gallon, for distilled water; tubulated on foot.

Analytical Balance, short beam, with rider attachment, sensitive

to one milligram; and a set of weights from fifty grams down to one milligram.

Technical Balance, capacity one kilogram; set of weights from one kilogram down to one centigram.

One Platinum dish of 100 c.c. capacity.

One platinum crucible 10 c.c. capacity.

Bohemian Glass Beakers-Griffins, low, wide-shape, with lip; capacity 150 c.c., 200 and 300 c.c. about half a dozen of each. Bellows Foot Blower. Blast Lamp for gas and air.

Reagent Bottles, one pint, about one dozen; narrow mouth. Small Glass Stoppered Reagent Bottles, with chemical names distinctly blown in glass.

Glass Tubing, assorted.

Glass Rods, assorted.

Graduates-one 120 c.c., and one 250 c.c.

Test Tube Brushes, half a dozen.

Camel Hair Brushes, several.

Five 50 c.c. Burettes, graduated in c.c.

Bunsen Burners, about half a dozen.

Iron Stands, with clamps, universal; two.

Clamps (Hofmann's), several.

Clamps (Mohr's), several.

Glass Condensers, about 12 inches long; three or four.

Iron Wire Gauze, for covering tripods.

Cork Borers, one set.

Corks and Rubber Stoppers, assorted.

Small Porcelain Crucibles, height, 11⁄4 inches; width, 1% inches;

half a dozen.

Crucible Tongue, double bent; one.

Saccharometer Cylinders.

Balling Saccharometer, o to 20 per cent.

Balling Saccharometer, 6 to 7 inches long, o to 10 per cent.

Picnometer, 50 c.c.

Nessler Cylinders, 50 c.c. capacity; two.

Desiccator, one.

Porcelain Evaporating Dishes, 41⁄2 inches; half a dozen.

Porcelain Evaporating Dish, one large, 10 inches.

Fat Extraction Apparatus; one.

Munktell's Swedish Filter Paper No. 0; 100 7 c. m. and 100

9 c. m.

Filter Paper in Sheets, 4 ream, 20x20.

Erlenmeyer Flasks, 1⁄2 dozen 8-oz. and 1⁄2 dozen 16-oz.

Measuring Flasks:

I liter flask.

21⁄2 liter flask.

2-250 c.c. flasks.

I-200 c.c. flask.

2-100 c.c. flasks.

Funnels:

2-5-in.

2-2-in.

2-2-in.

Mortars with Pestles :

Wedgewood, 5-in.

Agate, 3-in.

Iron, 6-in.

Pipettes:

I-50 c.c.

2-25 c.c.

I-20 C.C.

I-10 C.C.

I- - 5 c.c.

I- 2 C.C.

Rubber Tubing, assorted.

Spatula, steel, 4 or 5 inches; one.
Burette Stand; one.

Test Tube Stand; one.

Filter Stand; one.

Test Tubes, 4 and 5 inches in length; one dozen. Kjeldahl Flasks, pear-shaped, long neck; one dozen. 100° Centigrade Thermometers; three.

360° Centigrade Thermometer; one. Clay Triangles; half a dozen.

Tripods; half a dozen.

Water Bath, 8-inch; one.

Watch Glasses, assorted; half a dozen.

Copper Beakers, half-liter capacity; three.
Separatory Funnel; one.

Sand Baths; half a dozen.

Wash bottle, capacity about 500 c.c.