Intimately mix, set aside, let settle, and when clear, decant and preserve in stoppered bottles. The following might also be tried:
No. 28. — Camphorated Fluid for Preserving Fishes, etc..
To distilled water, sixteen parts, add one part of rectified spirits of wine and a few drops of creosote, sufficient to saturate it; stir in a small quantity of best prepared chalk, and then filter. With this fluid mix an equal quantity of camphor water (water saturated with camphor), and before using, strain off through very fine muslin.
The bisulphite of lime (see formula No. 11, ante) would also, no doubt, be excellent as a preservative for fishes if not quite so much diluted. Chloride of zinc, much diluted, is recommended as a good preservative.
Dr. Priestley Smith's formula (see No. 14, ante) would do exceedingly well for small specimens to be subsequently arranged in glass-topped tanks, as at the British Museum.
Another formula, sometimes used in the medical schools for preserving parts of subjects, and useful as a pickle for fish and reptiles, is a preparation called Moeller's Solution:
No. 29 — Moeller's Solution.
Bichromate of potash, 2 oz.
Sulphate of soda, 1 oz.
Distilled water, 3 pints.