2 1 3 , ~ . - f / t u t o - c h r n ~ i c a i ~ n ' n t i n ~W~M . .WII,I.IS, Jr.
T h e principal feature seems to be H sensitive coating consisting of the double chloride of potassium and plntinnm and oxalate of iron dipsolved in oxalic arid.
213,563 and 218,564.--C0/07i~~mattt7.7. J . P. GRIESS. Diazo-anisol is made to react upon an alkaline solution of the mono or diwlpho acid of beta-naphtol. for the production of red or crimson coloring matters respectively. 213,5~iS.--C~rnr.ntfoy uniting lrathrr, wouu', rtc. R. H. HICKS. The cement is composed of white frost glue, honnvt glue, fish glue, white lead and a solution of white shellac in alcohol and ether. I t has p m v d vcry useful in cementing leather driving belts. 21R,(iO'i.-.lln~X.in,; R~ttlt-~.B. M. ATWATEK. Raised letters on glass bottles are rendered mnre distinct and legible by grinding theni. 213,R;R.-/'rEsPr;,i,t;.
a n d con&nsin,g f h s h f i o d
('.AAPRELI,
MORFIT.
The material t o be preserved is mixed with gelatine and flonr and moiildrd in pieces of convenient shape, which are afterwards dried. 2 1 Y , ~ T , . - ~ L ' o m ~ o u n d . r nitifiEiol fut. stone.
C. E. PEIRCE.
