The microscope at once increases a hundred fold the pleasure of instruction which the cabinet is capable of affording us. For the minuter forms of animal life, and for observing the circulation in the frog, or in vallisneria, &c., a good compound microscope is necessary. But for ordinary purposes, I should recommend a Coddington lens, or the pocket Aquarian lenses, sold by Mr. Cox, of 100, Newgate Street. They are made of three powers, fitting into a case, and may be used separately, or combined according to circumstances. The one here figured costs 7s. 6d., but a cheap common lens, fitted with frame and handle, may be had of Mr. Cox for from half-a-crown to five shillings.
The present work does not afford me space to discuss the educational and ornamental uses of the aquarium, and I have confined myself to its mere elements, dealing with those in a way that I think will be most useful to beginners. The aquarium has uses of a higher character than such as may suggest themselves by the perusal of these few pages, and is capable of extension so as to combine with it the most attractive features of the wardian case, and, to some extent, a vivarium for a selection of amphibious and true land animals. These matters are pretty fully discussed in my work on Rustic Adornments, to which I have already called the reader's attention, and to its pages I once more refer for more extended information on this and other subjects of a kindred nature.
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RUSTIC ADORNMENTS
FOR HOMES OF TASTE,
AND RECREATIONS FOR TOWN FOLK IN THE STUDY AND IMITATION OF NATURE.