THE INDIA RUBBER WORLD 



sulphide 

 light and IT 



chromate lb. 



COMPOUNDING INGREDIENTS. 



Basofor .... 

 Blanc fixe . . 



Bone ash 



Chalk, precipi 

 precipi 

 China clay, i 

 Cotton linters 

 Fossil flour , 

 Glue, high grj 



Graphite, flake f400 poun.1 bhl.) lb. 



amorphous lb. 



Ground glass FF. (bbls.) lb. 



Infusorial earth, powdered ton 



bolted ton 



Mica, powdered lb. 



Plaster of l-aris bbl. 



Plastigum lb. 



Pumice stone, powdered (bbl.) (6. 



Rotten stone, powdered lb. 



Rubbei flux lb. 



Rubhide lb. 



Silex (silica) ton 



Soapstone, powdered, domestic ton 



imported ton 



Starch, powdered corn (carload, bbls.) etc*. 



(carload, bags) cwt. 



Talc, .American Ion 



earth. 



.14 @ .20 



.10 @ .25 



.04 ^ .08 



.03 (a 



60.00 @ 



65.00 @ 

 .Ol'A® .06 



2.0O @ 3.00 



.15 (ffl 



.04 @ .08 

 .0254@ .04'/ 



.15 @ 



•.38 @ 



20.00 @40.00 

 65.00 @80.00 

 60.00 @ 



.ton iS.OO @ 



MINERAL RUBBER. 

 Gilsonil 



(carloads factory) . 



Pionc 



ubbe 



1.30 

 1.50 

 1.75 

 40.00 



.ton 55.00 (3 



.ton 55.00 @57.00 



.ton *65.0O @ 



.ton 100.00 @ 



.lb. 



.14 @ 



carload, delivered 



less carload, factory ton 60.00 (S- 



Richmond Bi.nnd tan 75.00 @ 



No. 64 Brand ton 65.00 @) 



Refined Elaterite (on 175.00 ffl 



Raven M. R ton 50.00 @70.< 



Naphtha, motor gasoline (steel bbls.) gal .245^@ 



73 @ 76 degrees (steel bbls.) gal. None 



68 ffl 70 degrees (steel bbls.) gal. None 



V. M. S; P. (steel bbls.) gal. .23'/,@ 



Toluol, pure gal. 1.55 ffl 



Turpentine, spiiits gal. .66 ffl 



wood t;,7/. .57 ffl 



Venice lb. .65 ffl 



Osmaco reducer gal. .35 @ 



Zylol, pure gal. .45 (a> 



commercial gal. .30 ffl 



SUBSTITUTES. 



Black lb. .11 @ 



White (6. .13 @ 



Brown lb. .18 @ 



Brown factice lb. .10 @ 



White factire lb. .14 ffl 



Cordex lb. .45 @ 



F.nergine lb. .30 @ 



Paragol soft and medium (carloads) cii't. 17.08 ffl 



hard czvt. 16.58 ffl 



Toughenite lb. .40 @ 



VULCANIZING INGREDIENTS. 



Carbon, bisulphide (drums) lb. .OS}^® 



tetrachloride (drum) lb. .20 @ 



Lead, black hyposulphite (Black Hypo) lb. None 



Orange mineral, domestic lb. .14^ ffl 



Sulphur chloride (drums) lb. *.07^@ 



Sulphur, flour (carloads) cwt. 3.90 @ 



pure soft (carloads) cwt. 3.95 @ 



(See also Colors — .Antimony) 



RESINS AND PITCHES. 



Cantella gum lb. .65 (3 



Pine tar, retort gal. '.26 ffl 



kiln gal. ^.25 @ 



Pitch. Burgundy lb. *.07 ffl 



coa: tar lb. *.01 54 @ 



pine tar lb. *.025^@ 



ponto lb. *.12 ffl 



Resin, Pontianak, refined lb. None 



granulated lb. None 



fused Ih. None 



Rosin. K lb. *.OVA@ 



Shellac, fine orange lb. *.78 ffl 



Tar, kiln 6W. *I3.00 ffl 



WAXES. 



Wax, beeswax, white (6. .63 ffl 



ceresin, white lb. .18 ffl 



carnauba lb. *.70 @ 



ozokerite, black lb. *.60 @ 



green lb. '.78 @ 



montan lb. '.AO ffl 



substitute lb. *.23 ffl 



paraffin, crude 118/120 m. p. (cases) lb. .13 ffl 



123/125 m. p. (cases) lb. .13^0 



refined 128/130 m. p. (cases) Ih. .14'/Sffl 



133/136 m. p. (cases) lb. None 



THE MAAS LATEX CUP. 



.\ new late.x cup which, it is claimed, does not retain rain- 

 water, has been invented by Mr. Maas of the General Experi- 

 ment Station of the A. V. R. O. S. (East Coast of Sumatra 

 Rubber Planters' Association). 



The cup consists of two parts: (1) the cup proper, which is of 

 the usual type, but has a small piece of the rim cut out, by way 

 of overflow: (2) a piece of metal — aluminum, tin or zinc, bent to 

 resemble half a funnel, and provided with two ears by means 

 of which it is adjusted to the cup in front of the overflow. 



The cup is placed in such a way that the funnel-shaped opening 

 is immediately under the tapping channel, so that the issuing 

 latex enters the cup by the funnel. In case of rain, the water 

 dripping from the trunk will enter the cup in the same way, and 

 will continue to flow into the cup until the level on both sides 

 of the funnel has risen to the overflow, when the rain-water will 

 escape by tliis opening. The difference in specific gravity of 

 water and latex will cause the latter, which is the lighter fluid 

 and is separated from the overflow by means of the funnel wall, 

 to remain in the cup. 



Owing to the dry weather prevailing, no extensive experiment 

 has been possible, but trial on a small scale with a simulated 

 shower proved entirely satisfactory. 



