Index. 
xv 
Vowel-Tones. See under Vowel- 
Sounds. 
Waite (P. C. ). See Herbertson 
(Andrew J.). 
Walker (James). On the Velocity of 
Graded Actions, 22. 
Waves, Reflection and Refraction of 
Solitary Plane. See Kelvin (Lord). 
Wilson (Gregg). The First Founda- 
tion of the Lung of Ceratodus ( Title 
only), 725. 
The Embryonic Excretory 
Organs of Ceratodus ( Title only), 
725. 
Wires, Torsional Oscillations, by W. 
Peddie, 212. 
J. 0. Thompson’s Results 
regarding Vibrating Wires, by 
W. Peddie, 598. 
Wilson, Rev. John, Obituary Notice 
of, by Dr C. G. Knott, i, ii. 
Zinc-Copper Alloys, Heat of Com- 
bination in the Formation of (Alex. 
Galt), 619. 
