(Source: Flora Malesiana ser. 1, 1: Cyclopaedia of collectors)

Born: 1860, Nijmegen, Gld, Holland. Died: 1942, Wassenaar, Z.H., Holland.

career:

Geologist, educated at Leiden and Utrecht (Ph. Dr 1886); continuing his study at the University of Munich, 1887-88; Lecturer in Geology etc. (1888-91) and subsequently Professor (1891-97) at Amsterdam; Government Geologist of the S. African Republic, 1897-1902; Consulting Geologist at Johannesburg, 1902-05; Professor at the Technical College of Delft, 1906-30.

He made an expedition in Borneo (see below), making a small botanical collection after the departure of Hallier.¹

Collecting localities:

Borneo Expedition, 1893-94.¹ For the 1st part of the expedition cf. sub H. Hallier and A.W. Nieuwenhuis.² After the departure of Hallier, from Poetoes Sibau (June 15, 1894) to the mountainous country of Upper Embalau; Na Boengan (23); Na Boelit (28), Pangkalan Mahakkam (July 3); Sg. Penanei (14) (on the way climbing Bt Betoeng = Bt Lekoedjan); back to Pangkalan Mahakkam (18); Poetoes Sibau (22);³ from Smitau (Aug. 7) to the mountainous country between Oeloe Seberoeang and Oeloe Embahoe; Bt Oeian (10); Batoe Raoeng (11); Bt Pijaboeng (summit on the 15th); Bt Ampan and back to S(e)mitau (19); Sintang (20); Nanga Pinoh; Sintang (-Sept. 2); Smitau; Boenoet (5); Na Sebelit; Bt Oendau; Bt Sekoedjan pr.p.; Bt Loeboek (11); Lematak, Goeroeng Pelai, the Pangkalan Kapala Riam, Goeroeng Nakan, Goeroeng Benoewang (15); near the Pangkalan Paneh, proceeding by land (16); ridge Bt Beransa; the Babar Hantoe; Madi Mts; Sg. Paneh (22); Bt Sedaroeng (30); Na Moribooi; G. Raja (summit Oct. 5-6) and Bt Tjondong in the Schwaner MIS; Moribooi (9); the Oeloe Kowin (12); Sg. Samba (17); mountain excursion in the vicinity of Toembang Habangooi; Bt Tandok (21); going down the Katingan (= Mendawai) to the Java Sea; from Pegattan (Oct. 30) to Bandjermasin (Nov. 1) by boat, and from there returning to Java. Before setting out on the home voyage, he was once more at Sintang with a view to the collections.⁴

collections:

Herb. Bog. [BO]: 25 nos from Bt Raja (2000 m alt.) and Bt Tjindong or Tjondong (1000 m), numbered in continuation of those of Hallier and accordingly upwards of 3000. Evidently the collection included some ferns.⁵

literature:

(1) Author of: ‘Die niederländische Expedition nach Zentral-Borneo in den Jahren 1893 and 1894’ (Peterm. Mitt. 1895, p. 201-208, pl. 14); ‘De Nederlandsche expeditie naar Centraal-Borneo in 1894’ (Hand. Ned. Natuurk. en Geneesk. Congr. 5, 1895, p. 498); ‘Borneo Expeditie. Geologische verkenningstochten in Centraal Borneo (1893-1894)’ (1900, + atlas, 3 maps, 56 pl. and 89 textfig.); ‘Iets over de rivieren van het eiland Borneo in verband met zijn geologische gesteldheid’ (Hand. Ned. Nat. en Geneesk. Congr. 12, 1909, p. 700); and several other geological papers on the Dutch East Indies.

(2) cf. also Tijdschr. K.N.A.G. 1894, p. 642-643 and 858-859; and Bull. Mij Bevord. Natuurk. Onderz. Ned. Kolon. nos 12 and 13.

(3) cf. Tijdschr. K.N.A.G. 1894, p. 1008-1012 and Bull. Mij l.c. no 15.

(4) cf. Tijdschr. K.N.A.G. 1895, p. 113-133.

(5) cf. Christ in Ann. Jard. But. Buit. 20, 1907, p. 92-140.

biographical data:

Tijdschr. K.N.A.G. 37, 1920, p. 575 and l.c. 59, 1942, p. 471-473; Wie is dat? 1935, p. 254; Geologic en Mijnbouw 2, 1940, p. 41 + portr. and l.c. p. 283, portr. p. 285; Jaarb. Ned. Akad. Wet. Amsterdam 1941/42, p. 185-191 + portr.; Ned. Kruidk. Arch. 51, 1941, p. 363; l.c. 52, 1942, p. 398.

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