February i, 1903.] 



THE INDIA RUBBER W^ORLD 



145 



TRANSATLANTIC WIRELESS TELEGRAPHY. 



,01^ 'W 



Pablished on the 1st of each Month by 



THE INDIA RUBBER PUBLISHING CO. 



No. 150 NASSAU ST.. NEW TORE. 



Subscriptions: $3.00 per year, $1.75 for six montUs, postpaid, for the United 

 States and Canada. Foreign countries, same price. Special Kates for 

 Clubs of five, ten or more subscribers. 



Advertising: Rates will be made known on application. 



Remittances: Should always be made by bank draft. Post Office Order- or 

 Express Money orders on New York, payable to The India Kubbek 

 Publishing Compan v. Remittances for foreign subscriptions should 

 be sent by International Post order, payable as above. 



Discontinuances : Yearly orders for subscriptions and advertising are 

 regarded as permanent, and after the first twelve months they will 

 be discontinued only at the request of the subscriber or advertiser. 

 Bills are rendered promptly at the beginning of each period, and 

 thereby our patrons have due notice of continuance. 



COPYRIGHT. 1902. BY 



THE INDIA RUBBER PUBLISHING CO. 



Entered at New York Post Offlce as mail matter of the second-class. 



TABLE OF CONTENTS. 



Editorial: page. 



Transatlantic Wireless Telegraphy 145 



Automobiles and Tires 146 



The Capacity of the Rubber Industry • 146 



A CeUi'ius of Rubber Planting :. .. 147 



Canadian Rubber Trade Banquet 148 



The India- Rubber Trade in Great Britain 



Our Regular Correspmidiiit 149 



[The Waterproof Trade. Improvement in Solid Tires. Electrical 

 Notes. Gold Coast Rubber. Similarity of Title. Recovery 01 

 Solvents. Recovered Ruboer. Side Slip Preventor. Short Men- 

 tion.] 



Rubber Hanting and Exploi b.tion 151 



[Summ.iry of Planting in Mexico. Notes on New Planting Com- 

 panies in Mexico. Progress of Planting in the Congo Free State 

 and the Straits Settlements. Railway '1 hrouj^h Another Rubber Re- 

 gion.] 



The Rubber Trees at Tuxtepec J. J. FitzgerreV 154 



A Response from Dr. Weber Carl Otlo Weber. I'h.D. 155 



Literature of India-Rubber 156 



American Consumption of India-Rubber in 1902 157 



tWith Diagram of Kubber Prices for Three Years.] 



The Automobile Show at New York 158 



[With .Notes on the Rubber Tire E.xhibits.] 



India-Rubber Goods in Commerce 160 



Rubber Notes from Europe 161 



Recent Rubber Patents [American, British, and German] 162 



The Textile Goods Market 165 



New Trade Publications 166 



Uiscellaneous : 



The Discovery of Vulcanization 147 



Among the Inven.ors 148 



Amazon Steam Navigation Co O. Street & Co. 150 



Guarding Rubber Factory Secrets D.L.R. 159 



Credit Men's Associations I60 



United States Customs Decision^ 164 



Reclaimed Rubber and Rubber Scrap .. .. 165 



Prices of Rubber Footwear 172 



News of the American Rubber Trade 167 



The Rubber Trade at Akron Our Correi^pondent, 173 



Beview of the Cmde Rubber Market 175 



1\ /f .\RCONrS recent feats in sending wireless messages 

 across the big pond may be considered as a demon- 

 stration of the possibility of commercial competition with 

 the cables, but they are still far from settling the result of 

 such competition. To those who followed the results ob- 

 tained during the long cruise of the Car/o Alberto last 

 summer, the great Italian's latest exploits have brought 

 little surprise, but their practical significance is quite 

 another matter. It was found last summer that the long 

 distance feats were far from easy of accomplishment, and 

 the famous message to the king of Italy sent from Poldhu 

 and received near Spezzia was pounded into the ether for 

 two days or more at frequent intervals before it was finally 

 picked up. And nobody yet knows just how long it took 

 to get through the messages from Cape Breton and Cape 

 Cod to the station at Poldhu. Now the doubt thus raised 

 may mean much or little. If the difficulty is simply lack 

 of power in the sending apparatus, or of sensitiveness in 

 the receiving apparatus, it is likely to be quickly overcome, 

 while if produced by adverse meteorological conditions it. 

 may persist indefinitely. Weather, in the ordinary sense 

 of the word, appears not to interfere with wireless teleg- 

 raphy, but the same immunity cannot be assumed in the 

 case of great local differences in the electrical condition 

 of the upper atmosphere. It is certain that wireless teleg- 

 raphy has scored some wonderful successes, but it has also 

 scored some dismal failures, as in the attempt of the Mar 

 coni people to undertake wireless work for the United 

 States signal corps during the maneuvers in Long Island 

 sound last summer. 



Whatever may prove to be the cause of the troubles 

 which have been experienced, it seems certain that syntonic 

 working, on which the large commercial future of the sys- 

 tem depends, has not yet been reduced to practical form. 

 We hear much of what is about to be done in this line, but 

 results are wanting. Without syntonism very few stations 

 can simultaneously engage in long distance work, and 

 while in theory syntonism is quite possible, in practice it 

 may prove to be enormously difficult to secure and main- 

 tain. Even if secured, the etheric lines can be very easily 

 tapped, as the receiver at any point is capable of being 

 tuned to catch the messages, so that it is safe to say that 

 sending in code will be necessary to secrecy. This is quite 

 customary in cabling, and is not a serious matter save in cer- 

 tain classes of press messages. A graver difficulty lies in the 

 speed of sending. With the large amount of energy which 

 is now and probably always will be necessary in long dis- 

 tance wireless telegraphy, fast sending is extremely trouble- 

 some. We do not know the speed attained in the recent work, 

 which is wrapped in a fog of secrecy, but the messages sent 

 last summer to the Carlo Alberto are known to have been 

 sent at a rate of less than five words per minute. Of course 

 we are now only at the threshold of wireless telegraphy, 

 and it is somewhat rash to predict its limitations, but we 

 are disposed to think that the cable companies will not 

 have to shut up shop for a long time to come. We earnestly 

 hope that wireless telegraphy will score a commercial sue- 



