394 
GENERAL INDEX. 
cause of insolvency in Life-insurance 
Companies, and the best means of 
detecting, exposing, and preventing it, 
211 
Sprague (T. B.) on the adjustment of 
numerical results derived from observa¬ 
tion, 1883, 446 
-on the probability that a marriage 
entered into at any age will be fruitful, 
and that a marriage which has been 
childless for several years will subse¬ 
quently become fruitful, 1884, 866 
*Sprengel pump, C. H. Gimingham on a 
modification of the, 1876, 49 
* - air-pump, a new form of, C. II. 
Stearn and J. W. Swan on, 1877, 43 
* -pump, description of a shortened 
self-acting, by Dr. W. W. J. Nicol, 
1887, 669 " 
- vacuum, a good, the specific inductive 
capacity of, and the specific resistance 
of gases at different pressures, pre¬ 
liminary report of the Committee for 
accurately measuring, 1880, 197 
Spring migratory birds of the North of 
England, T. Lister on, 1S74, 137 
Springer (Dr. A.), torsion balances, 
1887, 636 
Springs, elastic force of certain forms of, 
F. H. Wenham on the influence of 
temperature on the, 1873, 49 
-- B. Latham on the influence of baro¬ 
metric pressure on the discharge of 
water from, 1881, 614 
SPRUCE (Richard) on the physical geo¬ 
graphy of the Peruvian coast-valleys of 
Chira and Piura and the adjacent de¬ 
serts, 1864, 148 ; on the river Purus, ib. 
Spurrell (F. C. J.) on the site of a 
Palaeolithic implement manufactory at 
Crayford, Kent, 1880, 574 
.Squalls, G. M. Whipple on the passage of, 
across the British Isles, 1873, 44 
Square, cube, and other roots of a given 
number N, M. Collins on new improve¬ 
ments in approximating more rapidly 
than usual to, 1872, 13 
-root of a number, the rule for con¬ 
tracting the process of finding the, 
Prof. M. J. M. Hill on, 1886, 538 
Squier (E. G.) on the basin of Lake 
Titicaca, 1870, 175 
Stability, propulsion , and sea-going quali¬ 
ties of ships, report on the existing 
knowledge on the, 1869, 10 ; 1870, 44 
--the use of the term, in the literature 
of naval architecture, Prof. 0. Reynolds 
on, 1883, 631 
Staffordshire, the Geology, Mineralogy, 
and Palaeontology of, list of works on, 
by W. Whitaker, 1885, 780 
* - coal-field, report on the distribution 
of the organic remains of the North, 
1863, 342 ; 1865, 42 
Statfordshire coal-field, H. Johnson on 
the extent and duration of the South, 
1865, 63 ; 1886, 636 
*-South, coal-field, S. Bailey on the 
economic value of the various Measures 
of coal and ironstone in the, 1865, 48 
- South, coal-field, W. Mathews on 
the Halesowen district of the, 1886, 
625 
-South, coal-fields, John Randall on 
the Shropshire and, 1869, 100 
-South, David Forbes on the igneous 
rocks of, 1865, 53 
-- South, Rev. W. J. Bain on the social, 
educational, and religious position of 
the working population of, 1865, 140 
-South, mines drainage : (1) surface 
works, by E. B. Marten, 1886, 824 ; 
(2) the drainage of the Tipton district, 
by E. Terry, ib. ; (3) the drainage of 
the Old Hill district, by W. B. Collis, 
825 
Stainton (H. T.) on a new’ leaf-mining 
larva recently discovered, 1861, 159 
-on the generic characters furnished 
by the different modes of mining leaves 
adopted by the larvae of Microlepidop- 
tera, 1863, 106 
- on the extraordinary partiality 
shown by insects of the genus Laverna 
for plants of the order Onagraceee, 1865, 
93 
- on science-lectures and organisation, 
1873, 495 , 507 
*Stalactitic formations from the Island 
of Antiparos, J. S. Phene on some, 
1877, 76 
Stalagmite, W. B. Dawkins on the rate 
at vdiich, is accumulating in the Ingle- 
borough Cave, 1873, 80 
Stallard (G.) on theqjresent methods of 
teaching chemistry, 1888, 73 ; 1889, 
228 ; 1890, 265 
*Stamp (Miss) on statistics of Free Public 
Libraries, 1875, 220 
Standard, mural, James Yates on the, 
1866, 365 
Standards for exhibiting the measures of 
length legalised in the United King¬ 
dom, James Yates on mural, 1865, 159 
*- . - of measure and wmight, new, Prof. 
Hennessy on, 1876, 49 
- Warden of the, reasons wdiy the 
office of, should include standard 
wnights and measures of the metric- 
system in addition to those of the im¬ 
perial w r eights and measures, James 
Yates on, 1867, 147 
-- of electrical resistance. (See ‘ Elec¬ 
trical Standards ’) 
Stanford (Edwmrd C. C.) on a chemical 
method of treating the excreta of 
tow T ns, 1869, 76 
-- on marbles from the Island of 
