'75 



have succeeded in acclimatizing Hevea partly also under un- 

 favourable conditions, at an elevation of 2,000 metres; and, 

 after a few years of difficulty and unfavourable development, 

 in getting it accustomed to local conditions. 



APPRECIATION DE LA. VALEUR INDUSTRIELLE DES 

 CAOUTCHOUCS D'APR^S LEURS PROPRI^TES MJ3- 

 CANIQUES. 



Par M. CHENEVEAU, 

 Chef do TrGi'ciux a la Faculte des Sciences de Paris. 



[No abstract supplied by the author.] 



NECESSITE POUR I/INDUSTRIE DU CAOUTCHOUC DE LA 

 DETERMINATION PRECISE AU LABORATOIRE DE LA 

 VALEUR RESPECTIVE DES CAOUTCHOUCS. 



Par M. LAMY-TORRILHON, 



President de la Chambre Syndicale des Fabricants de 

 Caoutchouc. 



[No abstract supplied by the author.] 



