INDEX 



II/9 



TJNI 



Unicellular plants, 538 



Unio, pearls in, 923 ; glochidia of, 933 



occidens, formation of shell in, 925 



U)iioni(lce, nacreous layer of, 923 



Unit i standard) for microscopy, 460 



Ureclinece, 636-638 ; alternation of gene- 

 rations in, 636 



Uredo-form of Pticcinia, 63s 



Uredospores of Puccinia, 638 



Urinary calculi and molecular coales- 

 cence, 1102 



Urine, micro-chemical examination, 1103 



Urochordata, 911 



Uropoda, tracheae of, 1011 



' Urticatiug organs.' See Thread-cells 



Ustilaginece, 636 



Uvella, 545 



Vacuoles in vegetable cell, 534 



- contractile, in protophytes, 535 ; of 

 Volvox, 552 



- of Actvnophrys, 737 

 Vagine of mosses, 671 



Vallisneria, habitat, 689; mode of de- 

 monstration of cyclosis, 689, 690 

 Vlpitli>ia, shell of, 798 

 Vampyrella, 729, 730 



gomphonematis, 729 



spifoyynr, 729 



Vanessa, eye of, 987 ; haustellium of, 992 



- urtic(p, eggs of, 1005 

 Variation, range of, in Astroinma, 849 

 Varley's live-box, 346 



Varnish, test for, 443 ; asphalte, 443 



Varnishes, 442-445 ; sealing-wax in alco- 

 hol, 444 ; red, 445 ; white, 445 ; various 

 colours, 445 



' Vascular Cryptogams,' links with Pha- 

 nerogams, 682 



Vascular papillae of skin, 1042 



VaucJieria, 562, 563 



- Rot if era in, 787 



' Vegetable ivory,' endosperm of, 693 



Vegetable substance, preparation of, 514 ; 

 gum-imbedding for, 514 ; bleaching of, 

 514 



Veins of vertebrates, 1056 



Velum, in gastropod larva, 936 



Venice turpentine cement, for glycerin 

 mounts, 444 



Ventricnlites, 861, 1088 



Venus' flower basket, 859, 860 ; spicules 

 of, 860 



Verbena, seeds of, 724 



Vertebrata, 1017-1065; bone of, 1020; 

 teeth of, 1023 ; dermal skeleton of, 

 1026 ; blood of, 1034 ; red blood-cor- 

 puscles, 1034 ; white blood-corpuscles, 

 1036 ; fibrous tissues, 1038 ; skin, mu- 

 cous and serous membrane, 1041 ; dis- 

 tribution of ciliated epithelium, 1044 ; 

 fat, 1045; cartilage, 1046; glands of, 

 1047 ; muscle, 1048 ; nervous tissue, 

 1051 ; circulation, 1054 ; respiration, 

 1063 



WAR 



Vertebrated animals, 1017. See Verte- 

 brata 



Vertical illuminator, 336-338 ; how to 

 use, 337 ; for examination of metals, 

 337 ; for ascertaining ' aperture,' 338 



I'l'spidcr, eye of, 987 



Vibracula of Poh/zoa, 910, 911 



Vibrio, movement of, 433 



rugula, 659 



' Vibriones,' as applied to certain nema- 



todes, 945 



Vibriones, form of, 653, 659 

 Vigelius, on tentacular cavity of Poli/soa, 



905 lltiti 



Vine, size of ducts of, 691) 

 Viohi tricolor, pollen-tubes of, 723 

 Violet, cells of pollen-chamber, 720 

 Virginian spider- wort, cvclosis in, 691 

 Virtual image, 14 note, 24, 25, 376 

 Vision, depth of, 88, 89, 90; stereoscopic, 



89 



Visual angle, 27 

 Vitrea (Fora minif era), 819 

 Vitreous cells (arthropod eye), 983 



optical compounds, 31 



shells of Fora minif era, 799 



' Vittse ' of LicmophorecB, 604 ; of seeds 



of umbellifers, 724 

 Vocal cords, structure of, 1040 

 Vegan's changing nose-piece, 294 

 Volcanic ashes and dust, microscopical 



examination of, 1076 

 Volvocineee, 550-557 

 Volvox associated with Astasia, 765 



- vegetable nature of, 556 note ; anioe- 

 biform phase of, 556 ; Eotifera in, 787 



aureus, cellulose in, 552 ; starch in, 

 552 



globator, 550-557 ; flagellate affinities 

 of, 551 note ; contractile vacuoles in, 

 552 ; endochrome of, 552 ; development 

 and reproductive cells of, 554-5-">li 



VorticeUa, foot-stalk of, 773 ; contrac- 

 tion of foot-stalk, 774, 775 ; fission of, 

 777 ; encystment of, 778 ; classification 

 of, 782 ; gemmiparous reproduction of, 

 782 ; conjugation of, 782 



- microstoma, 779 



W 



Wahllieimia aust rails, shell of, 926 



Wale's model, 224 ; his limb, 224 ; his 

 coarse adjustment, 226; his fine ad- 

 justment, 226 



Wallflower, pollen-grains of, 722 



Wall-lichens, 649 



Wallicli, on structure of diatom frustule, 

 590 note ; on Triceratitun, 613 note; 

 on CJicetocerece, 614 note', on cocco- 

 spheres, 747; on Polycystina, 852 note 

 his plan for sectioning a number of 

 hard objects, 508 note 



' Wanghie cane,' stem of, 701 



' Warm-stage ' for observing blood-cor- 

 puscles, 1034 



