t., since
1887; Senior Wrangler and Smith's Prizeman, 1865; Professor of
Experimental Physics, Cambridge, 1879-1884; Secretary Roy. Soc.,
1887; author of "Theory of Sound," and many scientific
papers.--["Who's Who," and "Ency. Brit."]

_bro_, Hon. Edward Gerald STRUTT, successful land-agent and surveyor.

_me si son_, Ronald Montague BURROWS (b. 1867), Professor of Greek
in the University Coll. of S. Wales and Monmouthshire.--["Who's
Who."]

_son_, Hon. Robert John STRUTT (b. 1875), F.R.S., Fellow of Trinity
Coll., Cambridge; author of papers on radium, etc.--["Who's Who."]

_me fa bro_, Major-General Edward VICARS, R.E., distinguished himself
under Lord John Hay on North Coast of Spain; brevet majority and
Spanish orders for gallantry before San Sebastian in 1836; selected
for special duty with the fleet in 1854, but taken ill on the way
out, and retired on full pay.

_wife_, see BALFOUR.

William #THOMSON# (b. 1824), Baron #KELVIN# (1892), P.C., O.M.,
F.R.S., and numerous other distinctions; eminent mathematical
physicist; inventor of mirror galvanometer, of siphon recorder
in connection with submarine telegraphy, of a new form of
mariner's compass, etc.; acted as electrical engineer for many
submarine cables; President of British Assoc., 1871, of Royal
Soc., 1890-1895, and four times of Royal Soc., Edinburgh; author
of numerous mathematical and physical memoirs.--["Who's Who," and
"Ency. Brit."]

_fa_, James THOMSON (1786-1849), son of a small farmer in co. Down;
commenced the study of mathematics on his own initiative; became
Professor of Mathematics at Belfast, 1815, then at University of
Glasgow, 1832; also a good classical scholar and astronomer; wrote
the authorized mathematical text-books of the Commissioners of
National Education in Ireland.--["Dict. N. Biog."]

_bro_, James THOMSON (1822-1892), F.R.S., Hon. LL.D., Glasgow and
Dublin, Professor of Civil Engineering, first at Queen's Coll.,
Belfast, 1857-1873, then at Glasgow, 1873-1889. Invented the "vortex
water-wheel," 1850; numerous memoirs on physical
investigations.--["Dict. N. Biog.," and "Ency. Brit."]

_bro_, John THOMSON, died young, having contracted hospital fever
during medical study at Glasgow. Considered as able as his brothers.

_si son_, James Thomson BOTTOMLEY, F.R.S. (q.v.).

_si son_, George KING, actuary and mathematician; author of many
original papers, and of an authoritat