1865-68 ‘TRICHINA SPIRALIS’ AGAIN 171 
which may shortly be called for. The organic 
character of Eozoon^ is still contested by some 
of our experienced names ; but not conclusively, 
to my mind. 
Now and again a touch of pardonable pride at 
the verification of his discoveries crops out in his 
letters. Writing to his sisters in April 1866, he 
says : — 
‘ To-night I preside at the Royal Academy of 
Arts, w'hen a paper is read on Cattle Disease, 
including that singular form occasioned by my 
Wee worm Tvichinci spiTcihs, which some of my 
friends are at length obliged to own that I did 
discover.’ 
With his friend Mr. (now Sir John) Fowler, 
who was President of the Institution, he dined with 
the Civil Engineers. To his sister Maria he sends, 
on May 16, 1866, an account of the banquet: 
‘After the great dinner H.R.H. Prince of Wales 
sent to ask me to come to him in the smoking-room, 
where a select party were gathered for more social 
chat than the formal banquet and its speech-making 
“ ‘Eozoon’ is a singular 
structure discovered by Logan 
and Dawson in the Laurentian 
Rocks of Canada, which was 
said to be Protozoan, and sup- 
posed to represent the earliest 
form of life presented on this 
P'anet. The history of this 
structure may be found in King 
and Rowney, An Old Chapter 
of the Geological Record, 1881. 
The mineral nature of ‘ Eozoon ’ 
was, however, strongly insisted 
upon by King, Rowney, Moebius, 
and others, and the recent re- 
searches of Gregory and John- 
ston-Lavis upon the lavas of 
Vesuvius have practically de- 
monstrated its inorganic nature. 
