Scientific Intelligence. — Zoology, 199 



between the sexes. The same objections may also be made to 

 the influence attributed to the relative power of the constitution 

 of the male and female, which has been estimated for the pur- 

 pose of levelling the exceptions. With regard to experiments 

 upon animals, it is clear that they are inapplicable to man. The 

 numerical relation between the two sexes does not depend upon 

 accidental circumstances, but is founded upon a superior law of 

 nature, constant in all climates, and at every period of time, and 

 always the same in all its relations. 



29. Growth and Habits of a Young Rhinoceros. — The first 

 dimensions taken of the animal were made at three days old, 

 when it measured two feet in height, three feet four inches and 

 three quarters in length, and four feet and seven-fourths of an 

 inch in its greatest circumference. Since that, it has increased 

 in the following proportions : From three days to one month it 

 gained five inches in height, five inches and three quarters in 

 length, and three inches and three quarters in. circumference ; 

 while, from the age of one to fourteen months, it increased one 

 foot seven inches in height, two feet in length, and two feet se- 

 ven inches in circumference. From fourteen to nineteen months, 

 four inches in height, one foot four inches and a half in length, 

 and two feet four inches in circumference, — the rhinoceros be- 

 ing, at the date of the last measurement, in December 1825, 

 four feet four inches high, seven feet four inches and a half long, 

 and nine feet five inches in circumference. The general aspect 

 of the cub now resembles the mother, the heavy folds of the skin, 

 which were wanting in July, being fully formed in December. 

 The nasal horn, at the latter period, scarcely protruded two inches 

 beyond the skin. The observations made by Mr Hodgson, sur- 

 veyor-general of India, are of great value, in reference to all 

 questions respecting the rate of developement and full growth of 

 many of the larger animals, respecting which scarcely any au- 

 thentic statements are to be found in authors, although they 

 have exercised the genius of Buffon, and other philosophical 

 writers. The diminished ratio of increase of height, remarkable 

 in the later period of developement, as staled by Mr Hodgson, 

 renders it probable that the animal will yet be a long time in ar- 

 riving at its adult size, — a supposition which is also rendered 

 probable by its seventeen months'* gestation, and the slow growth 



