PREFACE. 
for the valuable Manuscript Journal which 
afforded the extracts given in the Notes. In 
addition to Mr. Hebers habitual accuracy, may 
be mentioned the statistical information, which 
stamps a peculiar value on his observations : 
this has enriched the volume by communica- 
tions which the author himself was incompetent 
to supply. 
To Aylmer Bourke Lambert, Esq. Fellow 
of the Royal, Antiquarian, and Linnsean Socie- 
ties, author of several Botanical writings, and, 
among others, of a splendid work on the 
Genus Pinus, as well as possessor of the finest 
Herbarium in Europe, for his kindness in 
arranging the Plants collected in the Crimea, 
and in preparing a List of them for the 
Appendix \ 
If the Vignettes prefixed to the several Chap- 
ters, answer the purpose for which they were 
intended, by exhibiting, within a small compass. 
(3) See dppendiv to Vol. II. Mr, Lambert is the present possessor of 
the celebrated Herbarium of Pallas , purchased by Mr. Cripps during 
his residence with the Professor, and brought to England , in the 
Braakel , by the author's brother, the late Captain George Clarke, of 
the Royal Navy, A. D. 1805. 
