124 
THE JO IT RIVAL OE BOTA.NY 
“ the Garden’s decline ” in 1853, when u Lindley’s services [as Pro¬ 
fessor of Botany] were dispensed with; summer lectures ceased ; 
permanent labourers were discharged ; a greenhouse was sold; tender 
plants were exchanged for hardy ones, and no fires were lit in the hot¬ 
house where Miller had grown some of the first tropical orchids seen 
in England.” The present position of the Garden has already been 
mentioned, and with a summary of its present work the hook con¬ 
cludes. 
It remains to he said that the book is suitably illustrated and well 
printed—the frontispiece, reproduced from Field and Semple, shows 
the Garden from the river before the building of the Chelsea Em¬ 
bankment in 1874; the portrait in the titlepage of Johnson’s 
Gerard, here reproduced in reduced facsimile, is not however of 
Johnson, as stated in the lettering of the plate, but that of Gerard 
in the original edition of the Herball. The contents of the volume 
are rendered accessible by a full table of contents and a good index, 
and the headings of the pages are suitably utilised—of how few 
hooks can all these things he said! 
Carotinoids and related Pigments: The Chromolipoids. By L. S. 
Palmer. American Chemical Society Monograph Series. The 
Chemical Catalogue Company, New York, 1022. 8vo, pp. 31(5, 
two plates. $4.50 net. 
Carotinoids (chromolipoids) comprise certain of the red, orange, 
and 3 r ellow pigments of plants and animals, some being hydrocarbons 
(carotins), others oxy-hydrocarbons (xanthophylls). The work under 
notice is an exhaustive account of the present state of our knowledge 
of these wide-spread substances, and also indicates clearly the nume¬ 
rous lines alone; which further research into their nature and occur- 
rence is necessary. The earlier chapters are devoted to a comprehensive 
consideration of the distribution of carotinoids in plants and animals, 
in which the only omission noted is that of the yellow snow algje, 
where pigments of this type probably occur ; the latter chapters deal 
with methods of isolation, properties, quantitative estimations, and 
the like. A particularly interesting section is that in which the 
biological relations between plant and animal carotinoids are reviewed, 
with the conclusion that all animal chromolipoids are probably 
derived from the carotinoids of the food, either unchanged or slightly 
modified. The probable functions of these pigments are dealt with in 
the last chapter, and it becomes evident that in this respect our 
knowledge is very imperfect. A valuable bibliography and a good 
index are given. 
F. E. F. 
