68 THE CAMPHOR-TREE OF SUMATRA. | 
On the Camphor-tree of Sumatra (Dryobalanops Camphora, Colebr.) ; 
by Dn. W. H. DE Varese, Professor of Botany at the Royal Univer- 
sity of Leyden. (Kindly translated from the Dutch by Miss Marx 
. ANNE DE VRIESE, for this Journal.) 
(Continued from p. 41.) 
Geographical Distribution —The region in which the Camphor-tree 
is found extends, in latitude, from Ajer Bangis to Singkel, or nearly 
from 1°10 to 2°20 N. It is not met with more southward than 
Ajer Bangis; whether it grows further north than Singkel is unknown 
(Jungh.). Within these parallels it extends along the south-western side 
of Sumatra, from the coast to a considerable distance in the interior, 
and is found on the mountains as high as from a thousand to twelve 
hundred feet. As those mountain-chains which are near the coast, and 
most of the central valleys of the mountains which extend parallel to the 
coast, that is, in a direction from S. W. to N. E., are much higher than 
1000 feet, it is clear that this tree has a very limited region, occupying 
but a small part of south-western Sumatra: it is also confined to be 
= outer slope of the mountains, whence it descends into the alluvial plains, 
= though it approaches the sea only in those parts where the ground is: * 
swampy. It is found most abundantly, and in the best state, on thé 
... Outlying hills of the mountain-chain and on the lower slopes of the moun- 
_ tains themselves, at a height of from three to five hundred feet; and 
.. here the camphor is collected in the greatest quantity. 
= The Camphor-tree was seen by Dr. Junghuhn on the promontory of 
. Caracara, near Telo; on the alluvial plain of Loemoet; on the mouu- 
_ tains of Hoeraba, behind Sibogha; and on the ridges of hills in the 
south of Loemoet, &c. He found it growing on weather-beaten grant 
tic and trachytic hills, on yellow-red clayey soil, abundantly furnished 
with oxide of iron, and also on a rich alluvial soil abounding with 
humus. 
~ Climate and Temperature of the region of the Camphor-tree.—On the 
. coasts the mean annual temperature is but 803° (on the island of Java 
. 82°) and nearly 78? Fahr. at 1000 feet, the most elevated limits where 
_ the tree is still found, thus much lower than in Java. à 
. There are two causes particularly, that bring about this depression 
.. ef temperature: first, the narrowness of the level shore of the coast, im- 
