00678cam a22002051 4500 agr11001735 DLC 20260227110932.0 810509s1911 enk b 000 0 eng c agr11001735 (OCoLC)7405110 U.S.Dept. of Agr. Lib. OAkU DLC premarc SB608.I6 P4 Petch, Thomas, 1870?-1948. The physiology & diseases of Hevea brasiliensis, the premier plantation rubber tree. By T. Petch. London, Dulau & Co., limited, 1911. 4 p. l., 268 p. XVI pl. (incl. col. front.) 22 cm. Bibliographical references interspersed. 7986 7986