Monthly Microscopical"! 
Journal, Feb. 1, 1869. J 
Boyal Microscopical t^ociety. 
73 
microscopical classification of inorganic and organized nature, as a 
series of classified lists adaptable to any one desirous of obtaining 
knowledge of the most interesting objects, prepared by the manu- 
facturers generally. 
The several lists themselves are little better than those already 
mentioned by Mr. Pritchard, and like them each subdivision is 
arranged alphabetically. The lists of Quekett, over and above, 
have this advantage, that each section is introduced by most useful 
practical remarks as to the method of obtaining and preparing the 
tissues, objects, &c. 
The main divisions are into: — Vegetable Tissues, and Animal 
Tissues — with a sub-section. Objects for Polarized Light. 
Under I. Vegetable Tissues are found : — 
Cuticles. 
Siliceous Cuticles. 
Hairs. 
Cellular Tissue. 
Contents of Cells. 
Colouring matter. 
Starch. 
Eaphides. 
Spiral vessels. 
Ducts of various kinds. 
Woody Fibres. 
Fossil Woods. 
Hard Tissues. 
Alg^. 
Siliceous skeletons of recent 
and fossil Diatomacese. 
Mosses. 
Ferns. 
Spores. 
Pollen. 
Seeds. 
Miscellaneous Structures of 
a fibrous character. 
Under IP, Animal Tissues, come : — 
Sponges. 
Alcyonium. 
Gorgonia. 
Corals. 
Zoophytes. 
Insects. 
Eyes of Insects, Crustacea 
and Arachnida. 
Feet of Insects, &c. 
Hairs of Insects, &c. 
Parts about the mouth of 
Insects, &c. 
Parasitic Insects. 
Scales of Insects. 
Spiracles and Trache£e of 
Insects. 
Stings. 
Stomachs. 
Preparations from the Higher Animals :- 
Blood. 
Bone. 
Teeth. 
Fossil Teeth. 
Shell. 
Scales of Fishes. 
Hairs and Horns. 
Skins. 
Eyes. 
Muscular Fibre. 
Mucous Membrane. 
Among the objects for Polarized Light are short lists of 
animal, vegetable, and mineral productions. 
I may, in passing, notice Quekett 's 'Lectures on Histology' 
(1850-54), which embrace very good divisions of the elementary 
tissues and skeletal structures of plants and animals up to the 
vertebrata. As his histological catalogue and specimens in the 
