416 Scientific Intelligence. 
7. The Vegetation of the Chatham Islands, sketched by Ferdinand 
most vividly excited in regard to the Chatham Islands, inasmuch as this 
little group is the last eastward of New Zealand, no further land existing 
under those latitudes in the wide interjacent oceanic space until the west 
coast of South America is reached.” They had been visited by Dr. 
Dieffenbach and others. But the present exploration was made by Mr. 
Henry H. Travers, at the expense of his father, Judge Travers of Canter- 
bury, New Zealand, to whom this interesting little book is dedicated. 
Of the 129 indigenous species of plants here enumerated and discussed 
42 are dicotyledonous, 20 monocotyledonous, and 67 cryptogamous. 
Only 9 phanerogamous species are peculiar to the group, and one (AMyo- 
sotidium nobile) generically peculiar; nearly all the rest are found in 
New Zealand, as was to be expected. In the limitation of species, Dr. 
Miller takes very comprehensive views, as is exemplified in the reduction 
of nearly a dozen New Zealand Hpilobia, admitted even by Dr. Hooker 
as probable species, to Z. tetragonum of Europe. At the same time he 
reiterates the expression of his entire confidence in the real objective dis- 
tinctness and permanent stability of genuine species, insisting that their 
perfect discrimination is far from hopeless, and that their true distinction 
never rests on solitary or on faint characters or upon such as admit of 
exceptions! We admire this hopeful spirit, especially in a botanist of 
such large experience. 
In the conclusion of his preface, Dr. Miller appeals to missionaries, aS 
enjoying unparalleled facilities for scientific researches in lands mainly 
me y savages; and, rendering due acknowledgements for what 
has al been done by them, adds that, “if the devoted men who 
carry abroad the w were more generally cognizant how oft 
additional brilliant lustre.” wen 
8. Revision the genus Cousinia. Uebers. Zusammenstellung de 
Arten der Gattung Cousinia Cass.; von Dr. At. B pees 
the Memoirs (now separately printed) of the Imperial Academy of - 
region. es 
9. Krok, Monograph of Valerianew. Part 1, Valerianella. From the 
Roy. Swedish Acad. Sciences of Stockholm. 1864, pp. 102, with 4 plates 
of analyses, large 4to.—The prefatory matter is Swedish; but all the 
systematic part in Latin. An elaborate monograph of Valerianella, kept 
