15 



Test No. 1. — Boil for ten minutes in a solution composed of 80 grains 

 of Ivory soap to one pint of water. 



Test No. 2. — A second sample shall be taken and boiled ten minutes 

 in solution containing 10 grains of dry carbonate of soda to one pint of 

 water. 



Test No. 3. — Soaking twelve hours in a solution composed of 3 

 drams of citric acid to two fluid ounces of water, temperature about 

 70° F. 



Test No. 4- — Soaking twenty-four hours in lactic acid, sp. gr. 1.21 

 U. S. P., temperature about 70" F. 



Test No. 5. — An exposure to the weather (roof test) for thirty days. 



To correctly judge the results, the specimens that have been sub- 

 jected to the above tests must be washed in a weak solution of Ivory 

 soap and tepid warm water. No change of color must appear. 

 The olive brown borders must also stand the above test without 

 change. 



9. Workmanship. — The blankets to be manufactured in a thor- 

 oughly workmanlike manner and when finished must be free from 

 grease, must smell sweet, present a bright, clear appearance, and be 

 perfectly dry when presented for inspection. They must be of uni- 

 form quality and not show any stops in weave when held against 

 the light, or any other defects in workmanship. The ends to be 

 secured from raveling by a gimp and elastic overlook stitch as shown 

 upon the standard sample. The gimp and thread employed to 

 conform in shade to the body of the blanket. 



CURB BRIDLE, MODEL OF 1902. 

 (Plate IV.) 



The components are — 



1 curb bit, model of 1892. 

 1 curb chain, model of 1904. 



1 rein. 

 Headstall — 



2 cheek pieces. 

 1 crownpiece. 



1 brow band. 



1 throatlatch. 



2 brow band ornaments. 



All bridle trimmings, except brow band ornaments, are of bronze; 

 bronze finish for officers, brown japan for enlisted men. 



The curb bit, model of 1892, is made of best quality shear steel 

 and has dull nickel finish. The branches are drop-forged and elec- 

 trically welded to the mouthpiece, which is made of soft decarbon- 

 ized steel. A loop is forged on upper part of each branch for attach- 

 ing the curb-chain hook and cheek piece, and an eye on lower end 

 of each branch into which is welded the rein ring, made of 0.203-inch 



