330 G. A. J. VAN DER SANDE. 



by me no more than by Beccari [1876, 368], Langen (Virchow [1889, 162]), Finsch 

 [1888 — 93, 183], SCHELLONG [1891, 160] and Hagen [1899]; the colours noted generally lie 

 between 29 and 30. 



That the face is always lighter than the body, an observation already made by 

 MACLAY [1873a. 230] and SCHELLONG Le. for K. W. Land, I found confirmed; besides it 

 can always be noticed that the cheeks, on an average 30 — 29 (with the women 30), are still 

 somewhat lighter than the forehead, 29 — 30. 



Of the body the back is the darkest portion, whilst in front the breast is always 

 lighter than the belly; the types occurring most frequently are: 



the back 43 — 29, the belly 29 — 43 and the breast 29; 

 or „ „ 37—43. » » 37 30—37; 



or „ 43. » » 43— 2 9 7, » , 29—43. 



On the différent parts of the breast the skin differs in colour, being darkest towards the armpits. 

 The colour of the palms of the hands I mostly put down as 24 — 25 and never 

 darker than 30 — 33, whilst the ciphers of SCHELLONG are 30, 29 — 30 and 44. 



Albinos are reported from ail parts of New Guinea (MEYER [1874, 99], D'ALBERTIS 

 [1880, I, 108], Finsch [1888, 240], Virchow [1889, 159], Macgregor [1897, 28], 

 Moolenburgh [1902, 169]). Piebald individuals (Annual Report [1897 — 9§> ?l. 25]) 

 even tribes(r) (Pratt [1906, 169, 172]), may represent cases of partial albinism, very pro- 

 bably, however, they are cases of leucopathia acquisita, as shown in the second woman from 

 the right in fig. 214, in which the affected spots show a distinct symmetry. Still I must 

 mention that tinea imbricata s. desquamans (Malay = cascado), called ch&sè in Humboldt 

 Bay (wrongly called ringworm by COMRIE [1877, 105] and POCH [1905, 448]), causes the 

 pigment of the skin, even of the tattoed skin, to diminish. Ail the light-coloured patches of 

 figs. 1 and 2 of PL XXXIII, figs. 3 and 4 of PL XXXV, XLI and XLVI represent parts 

 affected by chûst. Another skin disease, tinea albfgëna, described by NlEUWENHUIS [1904a, 561], 

 also causes discoloured spots, specially on hands and feet. 



The cristae cutaniae of palms and soles of Sentâni and Humboldt Bay people hâve been 

 studied from my plaster casts and imprints with printers ink, by Dr. Otto Schlaginhaufen [1905] from 

 whom I quote the following: From 90 imprints, taken from 18 individuals, it appeared that the main lines 

 of the hand are strongly reduced and the triangle of the carpal région is shifted in a distal direction. Only 

 in exceptional cases figurae tactiles are met with on thenar and hypothenar, whilst those of the metacarpo- 

 phalangeal région are always less developed. Contrary to this, the figurae tactiles of the finger tips are of 

 higher development. The stria transversa, stria obliqua and stria longitudinalis were wanting in 76 cases 

 whilst the spirula was met with 26 times. The simian type could still be recognised in 6 cases. 



From 24 imprints of plantae it appeared that with regard to "radius R 9a" [Le, 95] the design 

 déviâtes further from the original type (and this is still more évident in the right foot than in the left) 

 than with the African Negro. With regard to the "triradius 9" this development even goes further than 

 with the European [1. c, 97 — 98]. 



As for the elasticity of the skin, attention may be hère called to the trans- 

 verse folds of the skin in the région of the knee when the leg is extended, resulting from the 

 habit of squatting; with older people thèse folds are most marked, and sometimes number three 

 above and three below the patella (see PL XXXVIII, figs. 3 and 4, PL XLI figs. 3 and 4). 



