NEW PUBLICATIONS. 243 
covery in the direction of intelligent culture. The process is thus de- 
scribed by Mr. M‘Ivor :— 
“ In removing the strip of bark, two parallel cuts should be made down 
the stem, at the distance apart of the intended width of the strip of bark ; 
this done, the bark is raised from the sides of the cut and drawn off, be- 
ginning from the bottom, care being taken not to injure the sappy matter 
or Cambium left on the stem of the tree. This Cambium or sappy matter 
immediately granulates on the removal of the bark, and, being covered, 
forms a new bark, which maintains the circulation undisturbed.” 
This moss is kept continually moist, and, as in the case of the best 
native bark, lichens cover them, thus being taken as a criterion of 
goodness by the “ Cascarilleros,” so the presence of the moss keeps 
the bark from direct sunlight, and thus preventing the oxidation of 
the alkaloids and the elaboration of a troublous resin. From this it 
may be seen that it is not only wasteful but useless labour to cut 
down the tree in order to obtain the bark, and that killing the goose 
to possess the golden egg is no longer necessary. 
There are many other subjects we would like to note as the re- 
searches of the author, together with those of Decaisne, Trecul, Berg, 
etc., on physiological questions of vast importance on the Cambium, 
mode and origin of the “ renewed " bark, course of the sap, etc., but 
space bids us draw this notice to a close. Even the leaves of the tree 
are useful in fresh infusions or decoctions for the fevers of the country. 
The appendix and addenda contain correspondence with the Under- 
Secretary of State, Dr. De Vrij, etc., and other useful selections. 
In conclusion, it is seen that careful attention to climatological 
requirements and careful selection of the best species, have a£ least 
rendered the barks in value fully equal to those of South American 
growth, and even more so, as appears from a recent number of the 
* Pharmaceutical Journal, in which a case of a bark is mentioned 
yielding 10 per cent. 
At p. 30 the author conveniently sums up the conclusions which he 
has arrived at, and with more or less clearness sueceeded in demon- 
strating, viz. :— 
1, That the cultivation of the Cinchone in India promises ead success, 
but to ensure this, great attention must be paid to the choice of species 
2. That if properly conducted, it will prove remunerative. 
