ent influences of light. Those which grew unsheltered, he
places in the dark, and _vice versa_. Familiar examples are given in
the celery, of which the acrid qualities are removed by keeping off
the light; while the pungency of cress, parsley, &c., is increased by
exposure to the sun. M. Lecoq has not yet detailed all his
experiments; but he asserts that, before long, some of our commonest
weeds, owing to his modifications, will become as highly esteemed as
peas or asparagus. Let him shew that his process is one that admits of
being applied cheaply and on a large scale, and he will not fail of
his reward.

A QUALIFIED INSTRUCTOR.

It will be found that the ripest knowledge is best qualified to
instruct the most complete ignorance. It is a common mistake to
suppose that those who know little suffice to inform those who know
less; that the master who is but a stage before the pupil can, as well
as another, shew him the way; nay, that there may even be an advantage
in this near approach between the minds of teacher and of taught;
since the recollection of recent difficulties, and the vividness of
fresh acquisition, give to the one a more living interest in the
progress of the other. Of all educational errors, this is one of the
gravest. The approximation required between the mind of teacher and of
taught is not that of a common ignorance, but of mutual sympathy; not
a partnership in narrowness of understanding, but that thorough
insight of the one into the other, that orderly analysis of the
tangled skein of thought; that patient and masterly skill in
developing conception after conception, with a constant view to a
remote result, which can only belong to comprehensive knowledge and
prompt affections. With whatever accuracy the recently initiated may
give out his new stores, he will rigidly follow the precise method by
which he made them his own; and will want that variety and fertility
of resource, that command of the several paths of access to a truth,
which are given by thorough survey of the whole field on which he
stands. The instructor needs to have a full perception, not merely of
the internal contents, but also of the external relations, of that
which he unfolds; as the astronomer knows but little, if, ignorant of
the place and laws of moon and sun, he has examined only their
mountains and their spots. The sense of proportion between the
different parts and stages of a subject; the appreciation of the siz