WILLIAM HENRY PEARSON 
195 
time (1874) Pearson had married and settled in Eccles, where 
Dr. Carrington had a medical practice and also conducted a botany 
class. Pearson attended this class and thus began an intimate friend¬ 
ship with Carrington, who no doubt was the means of inducing him 
to take up the Hepaticce as his special study. This choice was further 
stimulated by the encouraging letters of Spruce, of whom Pearson 
always spoke in terms of gratitude and admiration. In 1878 Car¬ 
rington and Pearson issued the first part of Hepaticce Britannicce 
Frsiccatce ; after Carrington’s death the latter continued to issue 
sets, and many hepaticologists have profited by his well-prepared 
specimens. In 1886 Carrington received a number of liverworts from 
New South Wales and Tasmania; these were studied together by him 
and Pearson, and the results were published under their joint names 
in Proc. Linn. Soc. of N. S. Wales and Proc. Roy. Soc. of Tasmania. 
In 1889 a joint paper on “A New Hepatic ” was published in this 
Journal. This valuable collaboration was cut short by Carrington’s 
ill-health, but their friendship continued till Carrington’s death in 
1893, when an appreciative obituary notice of Carrington was con¬ 
tributed by Pearson to this Journal (p. 120). 
Pearson’s first contribution to this Journal was an account of a new 
Killarney liverwort, named 'Radula Garringtonii by Jack, This was 
published in May 1882, and was followed by many other contributions 
on hepatics and hepaticologists :—on Radula germana (1882), the 
Lejeunese of Lindenberg’s Herbarium (1890), Scapania aspera (1891), 
Cesia conferta (1892), Frullania microphylla (1894), Blagiochila 
Stableri (1896), Lejeunea Macvicari (1900), the genus Herberta 
(1919), in which volume he also published notes on Radnorshire 
Hepatics. His last contribution to the Journal, with whose editor 
he was in frequent communication, was in August last year on the 
collection of West Indian Hepatics made by Miss Armitage—a good 
example of his critical work. In the preceding June his account 
of the Hepaticce of New Caledonia was published in the Journal of 
the Linnean Society ; in this many new species were described, and 
the paper, as were many others, was illustrated by drawings from 
his pencil. 
Many other journals benefitted by Pearson’s knowledge ; the 
account of Harpanthus Flotovianus in Scotland (Trans. Bot. Soc. 
Edinb. xiii. 443 ; 1879) appears to have been his first botanical article ; 
the description of a new Irish hepatic ( Ceplialozia hibernica ) was 
appropriately published in the Irish Naturalist for 1894; numerous 
other papers appeared in the Naturalist, Bryologist, Revue Bryo- 
loqique , Few Bulletin, Lancashire and Cheshire Naturalist , and 
Proceedings of the Manchester Literary and Philosophical Society. 
He was a Corresponding Member of the Linnean Society of New South 
Wales, of the Royal Society of Tasmania, and of the Christiania 
Yidenskabs Selskabs, and some of his papers were published in their 
journals. His services to science were recognised by his election as 
an Associate of the Linnean Societ}' - in 1907, and by the award of the 
honorary degree of M.Sc. by the University of Manchester. Pearson’s 
monumental work, The Hepaticce of the British Isles, is the standard 
work of reference for British hepaticologists ; the herbarium on which 
