- Salter, Dr. J., on Gammarus, [147].
- Salticus scenicus, [105];
- Kirby and Spence on, [107];
- foot of, [108].
- Sand-hopper, [151].
- Scorpions, [96].
- Sedgwick, Professor, on Peripatus, [31].
- Sharp, Dr., on Dytiscus, [47];
- on Blatta, [65];
- on Forficula, [79];
- on Locusta, [80], [85];
- on Lithobius, [123];
- on Julus, [126];
- on wings of Hymenoptera, [170].
- Shells broken by Dytiscus, [33];
- Mr. Kew on dispersal of, [130].
- Shore Crab, [136].
- Shore-hopper, [151].
- Shrimp, [132].
- Sialis lutarius, larva of, [177];
- W. Evans on, [177];
- anatomy of, [180];
- pupa of, [182].
- Sicarius, [158].
- Simmermacher on Hydrophilus, [53].
- Sirex, [82].
- Sowerby, G. B., on Dytiscus, [34].
- Sphaerium, [130].
- Sphaeroma, [155].
- Spiders, general description of, [96];
- Trap-door, [97];
- Hunting, [98];
- Garden, [98];
- Jumping, [105];
- Diving, [108].
- Stebbing, Rev. T. R. R., on etymology of Dytiscus, [33 n.];
- on Malacostraca, [128];
- on meaning of chelate and sub-chelate, [132 n.];
- on Amphipods, [141].
- Stewart, Professor, incident of, [20].
- Stilopyga, [63].
- Swammerdam on Blatta, [74];
- on Nepa, [89];
- on Water Mites, [114];
- on Woodlice, [156];
- on Dytiscus larva, [158], [159].
- Tailed Wasp, [82].
- Talitrus locusta, [151];
- Bate and Westwood on, [151];
- Mr. Robertson on, [152].
- Tanypus, larva of, [176].
- Tegetmeier, Mr. W. B., on destruction of shells, [34].
- Thomson, J. A., on Spiders, [100].
- Trap-door Spider, [97].
- Vertebrates, [28].
- Wart-eater, [81].
- Water Beetle, Margined, [31];
- the Great, [49].
- Water Boatman, [93].
- Water Bugs, [86].
- Water-devil, [157].
- Water Mites, [113];
- Swammerdam on, [114];
- De Geer on, [116];
- Dugès on, [117];
- Mainland on, [118].
- Water Scorpion, [86].
- Water-tiger, [157].
- Westwood on Locusta, [81].
- White, Gilbert, on Blatta, [64].
- Wing-cases, [41].
- Wireworm, [126].
- Wood, Rev. J. G., on lens stand, [15].
- Woodlice, [155];
- Swammerdam on, [156].
- Worms, [29].
- Wright, Mr. L., on microscopes, [16].
- Zeiss, lenses of, [15].
THE END.
FOOTNOTES:
[1] Darwin, Descent of Man (2nd ed.), p. 159, note 23.
[2] The power of magnification of a lens is the ratio of its focal distance to 10 inches. Thus a lens of 1 inch focus (or focal distance) magnifies 10 times (written × 10, or ten diameters); one of ½ in. focal distance, 20 times, and so on.
[3] A Popular Handbook to the Microscope, p. 39.