162 
P. angustifolia, Ait., is remarkable in having violet-scented flowers. 
A double-flowered form of P. ionensis is often met with in gardens 
usually either as P. angustifolia, flore pleno or as P. coronaria, flore 
1 
eno. 
Cocculus trilobus was introduced to cultivation from Japan about 
twenty years ago by Professor Sargent of the Arnold Arboretum. 
It is a hardy scandent shrub with insignificant flowers but rather 
attractive bunches of small blue-black fruits. The species ranges 
frrom Japan and Northern China to the Philippines. 
Cistus Loreti is a hybrid between C. ladaniferus, Linn. and 
C. monspeliensis, Linn., which has been found in a wild state in 
Hérault, growing with the two species named, and has since been 
obtained artificially by the late Dr. Bornet. It has been grown at 
ew for a quarter of a century and has proved of great value owing 
to its hardiness. 
The pretty Hypericum Kalmianum was originally introduced 
into this country in 1759, but it appears for some years past to 
have been lost to gardens, the plant commonly grown under its 
name being H. prolificum, Linn. Seeds of H. Kalmianum, which 
is a native of the Great Lake region of North-Eastern America, 
were received at Kew in March, 1911, from Mr. J. Dunbar, the 
Assistant Superintendent of the Rochester Parks, N.Y. The 
figure was prepared from a plant, raised from these seeds, which 
flowered in August, 1912. 
Agricultural Chemistry.*—The issue of the 3rd edition of this 
admirable work (the lst appeared in 1902) affords a gratifying 
evidence that the scientific and theoretical aspect of agriculture is 
becoming a matter of more general study among those concerned. 
We know no work better calculated than this to give the student of 
advanced agriculture a thorough appreciation of the underlying 
principles that should govern the management of crops, the appli- 
cation of manures, the respective values of different foods for farm 
animals, and farm-work generally. It is on chemical change that 
agriculture has its. ultimate foundation, and it is on its control and 
most beneficial adaptation to his own purposes that the success of 
the farmer depends. The work opens with a description of the more 
important elements, gaseous and solid, and a general discussion on 
their connection with plant and animal life. The atmosphere and 
soil are then dealt with, leading up to a study of plant structure 
and physiology, crops and manures. The second part of the work 
is largely devoted to agricultural animals, their foods and feeding, 
milk a 
* Manual of Agricultural Chemistry. By Herbert Ingle, B.Sc. (Leeds) 
etc. London. Scott, Greenwood & Son . 397: ed Panera ee ico 
79. Gck, net,” Brd- edition 1913, n, pp. 397; 16 illustrations ; 26 
