Reports and Proceedings—Zoological Society of London. 287 
IIl.—Zootoctcat Socrery or Lonpon. 
May 3,1910.—Dr. A. Smith Woodward, F.R.S., Vice- President, in 
the Chair. 
Dr. A. Smith Woodward, F.R.S., communicated a paper by 
Dr. R. Broom, D.Sec., C.M.Z.S8., ‘‘On Tritylodon, and on the 
Relationships of the Multituberculata.’”? The author had re-examined 
the type and only known specimen of Zritylodon, and in one or two 
points came to different conclusions from Owen and Seeley. The ~ 
large flat piece of bone which forms the upper part of the snout, 
regarded by both Owen and Seeley as the frontal, was believed to be 
the upper part of the nasal. The supposed parietal was held to be 
the frontal. No distinct prefrontal could be made out; but there was 
believed to be a large distinct septomaxillary. The dental formula 
was believed to be 23 m’, instead of, as supposed by Owen, 2? m°. 
Gidley’s recent paper on Ptilodus was criticized at some length, and 
an endeavour made to controvert his conclusion that Péclodus is allied 
to the Diprotodont Marsupials. 
It was held that while the Multituberculates are doubtless very 
unlike the living degenerate Monotremes, they are more primitive 
than the Marsupials and not at all closely allied to them, and that 
till the evidence of their affinities is much greater than at present 
they may well be left as an independent order. 
(QS Oy YN IS8 SZe 
THE REV. WILLIAM HENRY BG ERO Na aVisAy Ge GES. 
Born NovempBer 13, 1811. Dizp Marcu 17, 1910. 
(PLATE XXII.) 
In the death of the Rev. W. H. Egerton the Geological Society has 
lost its oldest Fellow—one who had. been elected on June 13, 1832, 
and had been a Fellow for nearly seventy-eight years, a record 
doubtless unique in the history of scientific societies. Probably the 
longest previous record of a Fellow of the Geological Society was 
that of Sir Richard John Griffith, elected a Member in 1808. He 
died in September, 1878, in his ninety-fifth year, after being connected 
with the Society for seventy years. 
The fourth son of the Rev. Sir Philip Grey Egerton, ninth 
Baronet and Rector of Tarporley and Malpas in Cheshire, the 
Rev. W. H. Egerton was brother of the distinguished geologist 
Sir Philip de Malpas Grey Egerton (1806-81). He was educated 
at Brasenose College, Oxford, where he graduated in 1835, and was 
afterwards elected a Fellow of his College. 
Inspired by the teachings of Buckland, he early gave attention to 
geological subjects, and in 1833 a short communication by him ‘‘ On 
the Delta of Kander’? was read before the Geological Society and 
published in the Proceedings (vol. ii, p. 76). The River Kander, 
after a course parallel to the Lake of Thun, had formerly flowed 
into the Aar, but owing to inundations its waters were diverted 
about the year 1731 into the lake. The author described the delta 
