INDEX. 



113 



Pat 



Oat, starch from 26 



Oblique section of brake fern 6 



Oncidium, cuticle of 11 



Onion, raphides in cuticle of 90 



Oolitic argillaceous shale, from 



Arica, Peru, section of 97 



Orthoptera, order, parts of, &c. 63, 64, 65 



Osmunda regalis, spore-cases of ... 40 



Oxalic acid, crystals of 93 



Palate of Limpet 59 



Palm, transverse section of a 36 



Parasite of horse 82 



Parasite of starling 83 



Parasite of watchman-beetle 88 



Parmelia parietina, a lichen 44 



Pepper stem , transverse secti on of a 36 



Peristome &c. of a moss 42 



Petals of various flowers 18, 19, 20 



Peziza coccinea, section of 45 



Pilea smilacifolia, section of 37 



Pilewort, cluster-cups on 46 



Pimpernel, petal of .' 18 



Pine-apple, transverse section of ... 3 

 Pinus strobus, longitudinal section 



of ; 7 



Plumose quinidine, crystals of 94 



Plumularia setacea, a zoophyte ... 55 



Pollens, various 20,21,22 



Polycystina, various species of 53 



Polvommatus alexis, a blue butter- 

 fly 69 



Polvpodium vulgare, fructification 



of 38 



Potato, starch from 28 



Prasiola calophylla, an alga 48 



Proboscis of humming-bird hawk- 

 moth 71 



Quinidine, plumose, crystals of ... 94 



Eabbit, head of a parasite of the ... 57 



Raphides, various 89,90 



Rhubarb, spiral - vascular tissue 



from 8 



Rhubarb, transverse section of leaf- 

 stem of 8 



Rice, starch from 27 



Rotatoria 58,59 



Rush, transverse section of 5 



Salicine, crystals of 94 



Sand-bee, tongue of 73 



Sandstone from Cherbourg works, 



France, section of 95 



Sarcoptes scabiei, itch-insect 88 



Sarsaparilla, transverse section of 



stem of 37 



Scalariform tissue 6 



Scales of burnet-moth, in situ 71 



Page 



Scales of plants 13,14 



Section of vegetable-ivory nut 9 



Seeds, parts of, &c 25, 24, 25 



Siliceous infusorial earth, from 



Bilin, Bohemia 95 



Siliceous rocks 95 



Silkworm, trachese of 70 



Simple hairs from cabbage 17 



Skin-parasite, Demodex 87 



Spicula, various 54 



Spider, dissections of, &c 84, 85 



Spine of an Echinus, transverse 



section of 57 



Spines of a starfish 56 



Spines of Spatangus 56 



Spiracle of Dytiscus 61 



Spiracles of insects 61, 70, 77 



Spiral-fibre cells from a Cactus ... 9 



Spiral-vascular tissue from rhubarb 8 



Spirogyra decimina, an alga 47 



Sponge, section of 53 



Spores of an Equisetum 40 



Spores of mushroom 2 



Squamella oblonga, a Rotifer 58 



Stamens and pistil of dead-nettle 22 



Starches, various 26, 27, 28, 29 



Starling, parasite of 83 



Stellate hairs from ivy 15 



Stellate tissue from rush 5 



Sting of bee 75 



Stings from nettle 18 



Sugar-grass, siliceous cuticle of ... 12 



Sulphate of lime, crystals of 91 



Tapioca, starch from 29 



Tetranychus lapidum, eggs of 87 



Thrips physapus, a small fly 75 



Tobacco, hairs of 15 



Tongue of blow-fly 76 



Tongues of insects, various, 



65, 71, 73, 76, 81 



Tortula subulata, capsule of 41 



Tracheae of silkworm 70 



Trichina spiralis, an Entozoon ... 58 



Two-horned scale-moss, capsule of 43 



Vegetable-ivory nut, section of 9 



Vegetable-ivory nut, section of 



testa of 24 



Volvox globator, a confervoid alga 49 



Wasp 73 



Watchman-beetle, parasite of 88 



Water-boatman, wing-case of 66 



Water-plantain, transverse section 



of leaf-stalk of 4 



Water-scorpion 65 



Water-weed beetle 61 



Wheat, starch from 26 



Willow- beauty moth, eggs of 72 



