OVOEN TEN ES, XXIII 
TIN (On the) of the island of Flores. 474, 
TRADE-WINDs (On the relation between departures from the normal in the strength 
of the) in the Atlantic Ocean and those in the waterlevel and temperature in 
the Northern European seas. 1147. 
TRINITRODIMETHYLANILINE (On the interaction of ammonia and methylamine on 
2.3.4.-). 1034. 
-TRUNK-DERMATOMA (On the nerve-distribution in the). 632. 
UNMIXING (On) in a binary system for which the three-phase pressure is greater than 
the sum of the vapour tensions of the two components. 834. 
UVEN (M. J. VAN). The theory of Bravars (on errors in space) for polydimensional 
space with applications to correlation. (Continuation). 150. 
— Combination of observations with and without conditions and determination of 
the weights of the unknown quantities, derived from mechanical principles. 157. 
— The theory of the combination of observations and the determination of the 
precision, illustrated by means of vectors. 490. 
VAGUS AREA (The) in Camelidae. 1119. 
VAPOUR PRESSURE LINES (On the) in the system phosphorus. IL. 678. IIL. 962, 
VAPOUR PRESSURES of oxygen and critical point of-oxygen and nitrogen. 950. 
— of nitrogen between the critical point and the boiling point. 959. 
VAPOUR TENSIONS (On unmixing in a binary system for which the three-phase pressure 
is greater than the sum of the) of the two components. 834. 
vectors (The theory of the combination of observations and the determination of the 
precision, illustrated by means of). 490, 
VERMEULEN (H. A.). The vagus area in Camelidae. 1119. 
VERTEBRATES (On the mode of attachment of the muscular fibre to its tendonfibres 
in the striated muscles of the). 989. _ 
viscosity of gas-mixtures (The diftusion-coefticient of gases and the). 1068. 
VRIES (JAN DE). A cubic involution of the second class. 105. 
— A triple involution of the third class. 134. 
— presents a paper of Prof. M. J. van Uven: “Combination of observations with 
and without conditions and determination of the weights of the unknown quantities, 
derived from mechanical principles”, 157. 
— Characteristic numbers for nets of algebraic curves. 935. 
— Characteristic numbers for a triple infinite system of algebraic plane curves. 1055. 
— Systems of circles determined by a pencil of conics, 1107. 
— presents a paper of Dr. W. van per Woupve: “On Nöruer’s theorem”. 1245. 
— A bilinear congruence of rational twisted quinties. 1250. 
— Some particular biliaear congruences of twisted cubics. 1256. 
WAALS (J. D. VAN DER) presents a paper of Prof. A. Smrrs and Dr. A. H. W, 
ATEN: “The application of the theory of allotropy to electromotive equilibria” 
Ii, 37. ILL. 680, 
— presents a paper of Dr, H. Hursnor: “On the thermodynamic potential as a 
kinetic quantity”, Ist. part. 85. 
— presents a paper of Prof. A, Smits and S. Posrma: “The system ammonia-water.”’ 182, 
