GENERAL INDEX. 
423 
lation and comparison of other datum- 
marks, 1877, 220 ; 1878, 219 ; 1879, 219 
Thomson [Sir W.] on Gaussin’s warning 
regarding the sluggishness of ships’ 
magnetism. 1878, 496 ; on the influence 
of the Straits of Dover on the tides of 
the British Channel and the North Sea, 
* 481 , 639 
-- on the measurement of the lunar dis¬ 
turbance of gravity, 1880, 25 ; 1881, 
93;1882, 95 ' 
--on maximum and minimum energy 
in vortex motion, 1880, 473 ; on a 
septum permeable to water and imper¬ 
meable to air, with practical applica¬ 
tions to a navigational depth-gauge, 
488 ; on an experimental illustration of 
minimum energy in vortex motion, 491 ; 
on a disturbing infinity in Lord Ray¬ 
leigh's solution for waves in a plane 
vortex stratum, 492 ; on a method of 
measuring contact electricity, 494 ; on 
a method of determining without 
mechanism the limiting steam-liquid 
temperature of a fluid, 496 ; on an im¬ 
proved sounding machine, 703 
- on meteoric dust, 1881, 88 ; 1882, 90 ; 
1883, 126 ; 1884, 38 ; 1885, 34 ; 1889, 
34 
-- on some uses of Faure’s accumu¬ 
lator in connection with lighting by 
electricity, 1881, 526 ; on the economy 
of metal in conductors of electricity, 
ib. ; on the proper proportions of re¬ 
sistance in the working coils, the 
electro-magnets, and the external cir¬ 
cuits of dynamos, 528 ; *on an elec- 
troergometer, 554 ; *on photometry, 
with experiments, 561 
- *on a new form of galvanometer 
for measuring currents and potentials 
in absolute units, 1882, 464 ; *on the 
transmission of force through an elas¬ 
tic solid, 474 ; *on a method of investi¬ 
gating magnetic susceptibility, ib. 
- the determination of a gauge for the 
manufacture of various small screws, 
1883, 318 ; 1884, 287 
-*gyrostatic determination of the 
north and south line, and the latitude 
of any place, 1883, 405 ; *on a model 
illustrating helicoidal asymmetry, and 
particularly the formation of right-and 
left-handed helicoidal crystals from a 
non-helicoidal solution, ib. 
- on the best means for facilitating the 
adoption of the metric system of weights 
and measures in Great Britain, 1884, 
27 ; on reducing and tabulating the 
tidal observations in the English Chan¬ 
nel made with the Dover tide-gauge, and 
connecting them with observations made 
on the French coast, 1884, 37 ; 1885, 60 ; 
1886 ,J 51 
Thomson [Sir W.] on a gyrostatic work¬ 
ing model of the magnetic compass, 
1884, 625 ; *on safety fuses for electric 
circuits, 632 
- on comparing and reducing magnetic 
observations, 1885, 65 ; 1886, 64 ; 1887, 
320 ; 1888, 28 ; 1889, 49 ; 1890, 172 
-on constantgravitationalinstruments 
for measuring electric currents and 
potentials, 1885, 905 ; on a method of 
multiplying potential from a hundred 
to several thousand volts, 907 
- on preparing instructions for the 
practical work of tidal observation, 
1886 , 40 ; *1889, 488 ; on a differential 
gravity meter, 1886, 141 ; 1887, 41 ; 
1888, 72 ; *1889, 504 
- onthe depthof thepermanently frozen 
soil in the Polar regions, 1886, 271 ; 
1887, 152 ; on the combination of the 
Ordnance and Admiralty surveys, and 
the production of a bat h y-hypsograp hi - 
cal map of the British Isles, 1886, 277 ; 
1887, 160 ; on electrolysis in its physical 
and chemical bearings, 1886, 308 ; 1887, 
336 ; 1888, 339 ; 1889, 223 ; 1890, 138 
-description of a differential gravity 
meter founded on the flexure of a 
spring, 1886, 534 ; on stationary waves 
in flowing water, 546 ; *artificial pro¬ 
duction and maintenance of a stand¬ 
ing bore, 547 ; *velocity of advance of 
a natural bore, ib. ; ""graphical illus¬ 
trations of deep sea wave-groups, ib. 
- on the vortex theory of the lumini¬ 
ferous (Ether, 1887, 486 
—— *on the turbulent motion of water 
between two planes, 1887, 581 ; new 
electric balances, 582 ; on the appli¬ 
cation of the centi-ampere or the deci¬ 
ampere balance for the measurement 
of the E.M.F. of a single cell, 610 
- on the desirability of further research 
in the Antarctic regions, 1888, 316 
-a simple hypothesis for electro-mag¬ 
netic induction of incomplete circuits, 
with consequent equations of electric 
motion in fixed homogeneous or hetero¬ 
geneous solid matter, 1888, 567 ; on 
the transference of electricity within a 
homogeneous solid conductor, 570 ; five 
applications of Fourier’s law of 
diffusion, illustrated by a diagram of 
curves with absolute numerical values, 
57 1 
- discussion on lightning conductors, 
1888, 603 
—— on the possibility of calculating tables 
of certain mathematical f unctions, 1S89, 
28 
—— on Boscovich’s theory, 1889, 494 
- on researches on electro-optics, 1890, 
144 ; on the earthquake and volcanic 
phenomena of Japan, 160 
