One Thousand Objects For The Microscope (1869) (Hardcover)

TO THE PRESIDENT AND RIEhlBERS I WOULD dedicate this little book, if dedications were not considered out of fashion or vulgar. It is of very little consequence to me, or the public, what this prefatory page may be called and so long as it associates the Quekett Club therewith, I am content. I have endeavoured to produce a guide to the cabinet, which will be of service to the microscopist of smallest pretensions and I claim to associate it with a Club eminently popular in its constitution-to the establishment of which I had the honour of being chiefly instrumental-in the hope that it may aid in rendering the use of the llIicroscope still more popular. If, as a father, I offer a gift to my children, it is accompanied by the hope that it may be bread, and not a stone, iv Preface. The number of objects enumerated is so great, that only a brief space could be assigned to each, except by increasing the size and price of the volume. It has been my desire not to come into competition with any other book for the Microscope, and I hope that I have succeeded. In selecting objects for enumeration, I have endeavoured to confine myself to those that are common and easily examined, excluding all sections, injections, or preparations requiring an experienced hand. To all who have aided me with drawings, suggestions, or assistance in any form my thanks are due and, if these pages should induce but a few readers to appeal to works of greater pretensions, our labour will not have been altogether in vain. h4. C. COOKE. One Thozcsa zd 0bjct. s FOR THE M I C R O S C O P E . T HE classificatioil of objects adopted in this work is the prinlary division into two nearly equal sections, of which the firstcontains objects derived from the Vegetable kii gdom, or Plant world, and the second of objects obtained from the Animal kingdom. Naturally enough, the first section subdivides itself into two groups, the one . . including derivatives froin Phanerogamic or Flowering plants, and the other Cryptogamic or Flowerless plants, such as ferns, mosses, fungi, and water-weeds or aka. The first group, or those objects whicll are derived from flowering plaots, such as trees, sl rubs, g arden and wild flowers or weeds, contain the elementary t ssuesa nd the organs of plants. A general and popular arrangement, under a few groups, has been adopted in preference to a rigid scientific sequence, which would have assumed the reader to be in possession of considerable technical knowledge, an assun ptionb y no means consistent with the design of the present work. In examining the objects enumerated, we may be permitted to recommend the novice alivays to commence the examillation with the lowest power of his microscope, and then, where necessary, to proceed with the higher powers. It is well never to commence the examination of an object 1 2 One Thlrsalm Objects with a power higher than one inch, and after that to employ a half-inch, a two-thirds, or a quarter, if desirable but the greatest satisfaction will always be derived from a good practical use of low powers. The objects selected for this work are common, easily obtained, readily mounted, and are all within the compass of an instrument not costing more than five guineas. SECTION I. VEGETABLE. I. CUTICLE O F LEEK AZZizt ltf orrz m...