icular name; they
are termed 'aguilillas.'

"The second fact is, the developement of a new instinct, which, as
M. Roulin declares, seems to become hereditary in the breed of dogs
found among the borderers on the river Madeleine, which are
employed in hunting the pecari. I shall cite the author's own
words:--'L'addresse du chien consiste a moderer son ardeur a ne
s'attacher a aucun animal en particulier, mais a tenir toute la
troupe en echec. Or, parmi ces chiens, on en volt maintenant qui,
la premiere fois qu'on les amene au bois, savent deja comment
attaquer; un chien d'une autre espece se lance tout d'abord, est
environne, et quelle que soit sa force, il est devore dans un
instant.'"

To these cases we may add a case familiar to the sportsmen of this
country, and one of which we have ourselves seen an unquestionable
instance, viz. the acquired habit of the setting-dog in arresting his
steps, and crouching, when in pursuit of game; the origin of which was
probably a pause in his career, in order the better to ascertain the
position of the game of which he was in quest; but this, by constant
teaching, has become hereditary to such an extent, that occasionally a
dog of pure breed will, the first time he is taken out, as soon as he
gets on the scent of game, crouch or place himself in a setting
attitude, and remain perfectly immobile until forced to proceed; nay
further--as it is necessary that the sportsman teach the dogs who are in
the same field with that one who discovers the game, as soon as they see
the latter setting to arrest their steps likewise; or, as it is termed,
to _back_, in order not to disturb the game--in the instance which came
under our notice, a dog of eight or nine months old, which had never
been out of a town, when taken into the fields for the first time with
an old well-trained dog, as soon as the latter had discovered game, and
pointed to it, instantly backed him--_i.e._ remained stiffly standing in
the position in which he was when he first caught sight of the older
dog: probably many sportsmen could be found who would vouch to similar
facts.

We may here state that we quite agree with Dr Prichard, as to the
absence of any foundation for the general belief, that all the acts of
inferior animals are performed without their consciousness or view to
any object or end; on the contrary, there is every probability that
they, in carrying