406 
FACTS AND OBSERVATIONS. 
in that island. In the autumn of I860 a quantity of the 
seeds of this valuable plant was received, and by the month 
of October of the following year the island botanist had suc¬ 
ceeded in rearing over 400 healthy plants, quite ready for 
planting out. This was in the low lands, where the climate 
proved too warm for the cinchona, and one half of the plants 
perished. Subsequently they were removed to the mountain 
region, at an elevation of about 4000 feet above the level of 
the sea, and placed under artificial treatment, with the 
happiest results. “In 12 months after, a plant of the red 
bark {Cinchona succirubra ) had attained to the height of 44 
inches, with leaves measuring 13J inches long, by 8| inches 
broad. The same plant, now two years old, measures six 
feet in height, with ten branches, having a circumference of 
stem [at base of 4\ inches. The Cinchona micrantlia (grey 
barks), being of more slender habit of growth, have not 
made so rapid progress ; the highest has attained to five feet, 
with three branches. The leaves, however, are larger, and 
measure 14 inches by 10 inches/ 5 Thus far the experiment 
had proved eminently successful, and, if only properly 
followed up, will, no doubt, lead to important results for the 
island, where there is an abundance of land possessing all 
the conditions favorable to the growth of the cinchona. 
— West India Letter . 
Veterinary Examination at Agricultural Shows. 
—We have the gratification of stating that Professor Varnell 
has been appointed the examiner of horses at the forthcoming 
show of the Suffolk Agricultural Society. The meeting will 
take place at Saxmundham, on Friday, July 8th. 
The Nervous System in the Lobster has been 
minutely considered by Dr. M. S. Clouston, who recently 
published an elaborate paper, with two engravings, in the 
Edinburgh Philosophical Journal. He says, in conclusion, that 
a careful consideration of the minute structure of the ner¬ 
vous system of any invertebrate animal, such as the lobster, 
shows us that histologically and physiologically the vertebrate 
and invertebrate animals are nearly allied. In every essen¬ 
tial point the ganglia and interganglionic cord of the lobster 
correspond to the spinal cord of the vertebrate, while the 
cephalic ganglion is analogous both in structure and function 
to the brain. The tendency to segmentation seen in both 
kingdoms is most marked in the nervous system of the 
invertebrate, because in this division the nervous system does 
not form the centre round which all the other parts are 
