596 baker's north YORKSHIRE. 
British Hepaticae, to be issued in monthly parts. Of this 
however, owing to ill health and other circumstances, only 
four parts were issued, containing- descriptions of thirty 
species, with drawings of fifty-one species. 
In 1878 Dr. Carrington and Mr. W. H. Pearson of 
Manchester, who was a great friend and pupil of Dr. 
Carrington, and had collected with him in various districts, 
issued Four Fasciculi of the British Hepaticae, Hepaticce 
Britaiinicce exsiccatce. Fas. /, issued in i8y8y contains 
specimens No. 1 to 75. Fas. ^, iS'jg^ No. 76 to 1^0. Fas. j, 
1 883, No. 75/ to 21^. Fas. 4, i8go, No. 216 to 2go. All the 
specimens in these Fasciculi are named, and the localities 
given, with the collector's name. These are of great value 
and assistance to students, for comparison with any they 
may collect. Good drawings of these, with magnified figures 
of dissections, are a great help in determining these plants, 
a correctly named specimen, however, is invaluable for 
comparison. 
Mr. Pearson is a very energetic worker, and after the 
death of Dr. Carrington he began to arrange his notes 
and drawings of the British Hepaticae. He also corres- 
ponded with and visited the late Dr. Spruce, who at that 
time was engaged on his fine work, Hepaticae Amazonicae 
et Andinae. Dr. Spruce, who was pleased to be able to 
help a careful worker, advised and encouraged him to go 
on with it, which resulted in the issue of the Hepaticce of 
t/ie British Isles^ with figures and descriptions of all t?ien 
known British species^ by William Henry Pearson^''' Lovell, 
Reeve & Co., London, 1902. 
This work was issued in monthly parts, and completed 
in two volumes. Vol. i, text. Vol. 2, figures, with drawings 
of magnified dissections of all the species. Vol. 2 contains 
228 plates, with the drawings of one species only on each 
plate, after the manner of Hooker's early work. 
