272 



THE INDIA RUBBER WORLD 



(Febri-ary 1. 1914. 



TAPPING RESULTS IN BRITISH GUIANA. 



"On the average, during the six months these trees have 

 l>ocn tapped, we have produced just over one pound 1 ounce 



""THE manager of "The Ilills" plantation on the Mazaruni P't tree." 

 ■* River, British Guiana, recently sent a report to the — 

 directors of that company resident in this country covering 

 the results of tapping experiments made on Hei'ca trees of 

 various ages on tht- plantation. His report, in part, reads as 

 follows: 



"On May ilu l.'lli t<i this year, wo starlud tn t.ip .^2 trees. 



Xl'rserv with Over 60.000 Seedlings. River M.xz.xkini and 

 Manager's Hill in the Background. 



which had reached exactly four years and three months in 

 age, all of which were 18 inches or more in circumference 

 three feet from the ground, and each tree has been tapped 

 with a single V (started at 18 inches from the ground) for 

 the past six months up to the 12th of November. At the 

 commencement of tapping we tapped six days per week, but 

 found that it would be better to tap seven days, as after the 

 rest of 48 hours we always found that we had a redui-tiun in 



Field of 2;.:-'\'eak-0ld Rubber Trees. Sihiwi.ng the Cover Crui' 

 OF Creepers on the Ground. 



the quantity of latex, so that from the end of the second 

 month we have tapped each tree seven days each week." 

 "Here are the results: 



Biscuits Scrap Total 



Drams Drams Drams 



First month 739 129 868 



Second month 950 120 1.070 



Third month 848 151 999 



Fourth month 1.280 130 1,410 



Fifth month 2,017 196 2.213 



Sixth month 1.982 169 2.151 



.\ venue of 3-Vear-Oi.i) Kubbek Trees. 



He also gives the rainfa 

 1908, to August 31, 1913— sh 

 of 515.3 inches, as follows: 

 year. 111 inches; third ye; 

 inches; lifth year, 95.9 inch 



The total number of wet 

 1,311, against 515 dry days, 

 w-as there a longer ijeriod 

 During 1911 and 1912 the 



for five years — from September 1, 



owing a total rainfall for that time 



First year, 110.3 inches; second 



;ir. 110.5 inches; fourth year 87.6 



es. 



days during these live years was 



Only six times in the five years 



of dry weather than seven days. 



re was a severe drought in the 



Trees 4 Vear:> .wu D ilui\Tiis Ulu. wira .-^n Average Yield of 

 17 Ounces of Dry Rl-bber in 6 Months. 



colony, the worst for fifty j'ears, and during that drought 

 there were three dry periods, one of ten days, one of fifteen 

 days and one of eighteen days. 



Total for 6 months 7.816 



895 



8.711. or 34 lbs. 7 drams 



The accepted authority on South .\merican rubber — "The 

 Ruliber Countrx' of the .\niazon." bv Henrv C. Pearson. 



