1. 1919] 



THE INDIA RUBBER WORLD 



81 



the properties of which are such that they tend to react with 

 sulphur in a rubber mixing as the result of which vulcanization 

 is elTected or expedited. Many substances are inherently accel- 

 erators in this sense whicli would not be so regarded at present 

 because their accelerating effect cannot be obtained under the 

 temperature and other limitations of the curing process itself 

 In addition to amino bodies, secondary amines and imines, sucl 

 as the specific nitrogen accelerators above mentioned, nitroso 

 bodies, except paranitroso-dimethyl-aniline and its homologs, 

 cyanide bodies, such as sodium ferrocj'anide, and protcids and 



the products of their decomposition and hydrolysis, including 

 the amino acids, and such, for instance, as animal glue or gelatine, 

 give good results when employed according to this process. 



Although in some respects advantageous to limit the amount 

 of sulphur to that required for reaction with the nitrogen acceler- 

 ator, it is permissible to admix with the nitrogen accelerator the 

 entire amount of sulphur to be used for vulcanization. With 

 the exception of a few above mentioned compounds, the nitrogen- 

 containing bodies used contain the amino group or a substituted 

 amino group. 



Rubber Tariffs of North America. 



M.\.\UFACTURED RUBBER GOODS Were exported in 1918 from tlie 

 United States to the other countries of North America, 

 Canada and the British Colonies, Mexico, the Central 

 American States, Cuba and the other West Indian Islands to the 

 amount of $10,417,390, showing the same steady increase that 

 marked each year of the war. The change from the fiscal j'ear, 

 beginning July 1 and ending June 30, to the calendar year begin- 

 ning January 1 and ending December 31, renders the necessary 

 comparisons a little awkward, for the 1918 figures are identical 

 for six months with those for the fiscal year 1917-18. The 

 exports in that period were $9,707,020 which was over a million 

 and a half more than the $7,994,805 of 1916-17 and that exceeded 

 by much more than two millions the $5,664,173 of 1915-16, which in 

 turn was nearly a million and a half more than the $3,257,865 of 

 1914-15, the first year of the European war. 



That figure was a little below the fairly steady average of the 

 previous years which was something under four million dollars 

 a year. 



The chief customer of the United States in all the lines save 

 tires was Canada which took $4,734,351 of rubber goods ; Cuba 

 was next with $2,486,104 and Mexico, third, with $1,715,559; far 

 behind followed Panama with $287,286, Jamaica witli $165,657, 



the Dominican Republic with $145,007, while the Danish West 

 Indies, which now belong to the United States, bring up the rear 

 with $14,427. 



Automobile tires form the largest item of the exports, $4,- 

 422,020; of these Cuba took $1,454,090, Canada, $1,278,000, and 

 Mexico, $999,569. For belting and hose of which $1,552,974 was 

 exported, Canada leads among the purchasers with $511,381; 

 Mexico is next with $459,325; and Cuba, third, with $386,069. 



Druggists' rubber sundries appear in the list for the first time 

 in 1918, when they were exported to the amoimt of $412,801; 

 previously they had been included among "other manufactures" 

 of rubber which, with them, made up a total of $2,815,326. Rub- 

 ber boots and shoes combined were sold to the amount of 760,- 

 041 pairs worth $1,358,372; for these Canada was by far the best 

 customer, taking over $900,000 worth with Newfoundland next 

 with $250,000 ; the southern countries had no call for goloshes. 



The succeeding extracts from the tariffs of the principal coun- 

 tries of North America show the competition to which rubber 

 manufacturers of the United States are subject under existing 

 tariff conditions. Owing to frequent tariff changes the figures 

 and information given below should be periodically verified and 

 small trial shipments made to test the rates: 



EXPORTED TO- 



UNITED STATES EXPORTS OF RUBBER GOODS TO NORTH AMERICA-1913-1918. 



Belting, Drueeist~' . ^ 



Hose, and Boots. Shoes. SeT A^- 



Packing. , -■■ „ * _^ Sundries. 



NORTI 



Pail 



$956 



British Honduras 389 



Canada 511,381 



Central American States — 



Costa Rica 6.067 



Guatemala 7,755 



Honduras 11.463 



Nicaragua 7,858 



Panama 79.545 



Salvador 7,577 



Mexico 459,325 



Miquelon, Langley, etc 35 



Newfoundland and Labrador 26,783 

 West Indies- 

 British — 



Barbados 1,896 



Jamaica 8.424 



Trinidad and Tobago.. 8,618 



Other British 2,961 



Cuba 386,069 



Danish (Virgin Islands. 



the United States) 1,182 



Dominican Republic 17,894 



Dutch 831 



French 2.611 



Haiti 3,354 



•Totals, North America $1,552,974 



Fiscal year, 1917-18 $1,529,170 



Fiscal year, 1916-17 1,171,463 



Fiscal year, 1915-16 837,147 



Fiscal year, 1914-15 627.696 



Fiscal year, 1913-14 923,941 



Fiscal year, 1912-13 1,328,305 



•Calendar year 1918. 



Value. 



$1,144 

 24.284 

 22,994 



25,484- 



89,566 318.919 



96 76 



2.075 2.195 



146 14,713 11,645 



5,037 5,698 



7,177 31,695 29,0SC 



1.081 24,664 23,992 



7,095 1,165 748 



25,243 128,866 124,214 



1,883 1,829 



1,499 1.762 



3,087 2,123 



4,738 3,829 



83,593 65,922 



Valu 



$1,042 



855 



235,394 



3,766 



1,452 

 1.195 



mobile. 

 \;iUr-. 



$200 



4,882 



1,278,000 



5.851 

 20,073 

 22,014 

 3,448 

 117,442 



All Other 

 Rubber Manu 



Value^ ' 



$2,278 



1,099 



1,730,564 



2.690 

 7,761 

 2.623 

 1,970 



I 

 107,752 

 $147,710 

 116,695 

 59,878 

 39.087 

 42,712 

 24.881 



$332,396 

 $415,174 

 303,635 

 154,923 

 104,100 

 124,121 

 80,939 



731 



193 

 652.289 

 418,946 

 312,128 

 163,234 

 119,337 

 135,952 

 146,927 



304 

 $1,025,976 

 $381,355 

 231,320 

 113.365 

 75,357 

 82,899 

 86,219 



1,336 30,435 



2,978 • 129,825 



5,438 90,862 



1.641 29,100 



88,561 1,454,090 



447 10.020 



4,364 95,511 



518 13,515 



42 47,684 



27,439 



426 



$412,801 $4,422,020 



$408,220 $4,474,713 



3,186,265 



2,184,874 



1,187,632 



1,254,200 



1,626,155 



12,814 



1.512 



1.349 



103,071 



2,S31 



$268,698 

 $306,435 

 362,547 

 265,833 

 146,186 

 168.128 

 197,530 



$2,402,525 

 $2,191,951 

 2,729,575 

 2.108,031 

 1,116.894 

 1,276.084 

 1,508,032 



$6,299 



32,175 



4,734,351 



16,357 

 42,438 

 50,907 

 30,395 

 287,286 

 56,358 

 1,715,559 

 8,525 

 318,519 



40,255 

 165,657 

 116,731 

 41,100 

 2,486,104 



14,427 

 145.007 

 16,883 

 54.536 

 37.571 



$10,417,390 

 $9,707,020 

 7.994.805 

 5.664,173 

 3,257,865 

 3,829,373 

 4,827,180 



