INDEX 



1175 



SPH 



STA 



Spheroidal concretions of carbonate of 



lime, 1100 



Sphingidce, antennae of, 988 

 Sphinx, eye of, 987 ; antennsie of, 988 



ligustri, eggs of, 1005 

 Spicules of alcyonarians, 880 



of sponges, 857 ; their names, 859-860 



silicious, of sponges, 857 



calcareous, of sponges, 857 

 Spiders, 1008, 1014-1016 ; microscopic 



objects furnished by, 1014 ; spinning 

 apparatus, 1015 f 



Spindle fibres, 538 



Spinnerets of spiders, 1015 



Spiny lobster, metamorphosis, 969 



Spiracles of insects, 995, 996 



Spiral cells in Phanerogams, 693 ; mode 

 of preparation of, 694 



crystallisation, 1096 



focussing arrangement for projection- 

 lens, 380 



vessels of Phanerogams, 698 ; obser- 

 vation of, in situ, 719 ; of plants com- 

 pared with tracheae of insects, 995 



Spiriferidcs, perforation in shells of, 



927 



Spiriferina rostrata, shell of, 927 

 Spirillina, 819 



sandy isomorph of, 814 

 Spirillum, movement of, 433 ; granular 



spheres of, 660 note 



undula, 659 



volutans, movement of, 652, 653, 659 

 Spirit, dilute, as a preservative medium, 



518 



Spirochcste, 653 

 Spirogyra, 549, 550 ; attacked by Vampy- 



rella, 730 

 Spirolina, a varietal form of Peneroplis, 



803 



Spiroloculina, 802 

 Spirula, 929 



shells of, bearing Protomyxa, 727 

 Spirulina, movement of, 548 

 Splachnum, sporange of, 669 



Splenic fever due to Bacillus anthracis, 



656, 661 

 Spon a e-spicules, 857-860 



mounting, 481 



in Carpentaria, 822 ; in mud of Le- 

 vant, 1085 



Sponges, 855-862 ; skeleton of, structure 

 of, 855, 856; reproduction of, 857; 

 habitat of, 861 ; preparation of, 861 ; 

 bibliography of, 862 note 



fossil, 1089 

 Spongilla, 861 

 Spongolithis acicularis, 620 

 Spongy parenchyma of leaves, 716 

 Spontaneous generation, 761 

 Sporange of Fungi, 633; of Myxomy- 



cetes, 636 ; of Marchantia, 665, 668 ; 



of mosses, 671 ; of Sphagnacece, 673 ; 



of ferns, 675 ; of Equisetacece, 680 

 Sporangia of Lycopodiacece in coal, 1084 

 Sporangiophores of Mucorini, 640 

 Spore, use of the term, 537 note 



Spores of Nostoc, 549 ; of Myxomycetes, 

 634, 636; of Peronosporece, 639; of 

 Bacteria, 655, 657, 660; of Mar- 

 chantia, 668 ; of mosses, 670 ; of ferns, 

 676 ; of ferns, method for studying 

 development of, 679 note ; of Equise- 

 tacece, 680 ; of Lycopodiece, 682 ; of 

 gregarines, 751 ; of Monas Dallingeri, 

 757 ; of Lycopodiacece in coal, 1084 



different kinds of, 541 note 



resting, of Chcetophoracece, 574 

 Sporids of Ustilaginece, 636 ; of Puccinia, 



638 



Sporocarp of Ascomycetes, 644 

 Sporogone of mosses, 672 

 Sporophores of Myxomycetes, 636 ; of 



Peronosporece, 639; of Ascomycetes, 



643 



Sporophyte in ferns, 680 

 Sporozoa, 749-752 

 Sporules of Melosira, 597 ; of Pleuro- 



sigma, 597 ; of Podosphenia, 597 

 Spot-lens, 316 

 Spring-clip, 453 



press, 453 



scissors, 457 



' Spring-tails,' 979. See Poduridcs 



Squid, 942 



Squirrel, hair of, 1030 



Stag-beetle, antennas of, 988 



Stage, horse-shoe, Nelson's, 179, 228 ; of 

 the microscope, 175-184; qualities 

 needful in a, 177 ; concentric, rotatory 

 motion of, 179 ; in the ' Continental ' 

 model, 259 ; graduated rotary for use 

 with apertometer, 395 



attachable, simple form, 180 ; Swift's, 

 180 ; Allen's (Baker's), 181 ; Keichert's, 

 183; Bausch and Lomb's, 183, 184; 

 Mayall's, 183 ; Zeiss's, 183 ; Beck's, 184 



forceps, 338 



-micrometer, 270, 274, 288, 290 



moist, 341 



plate, glass, 340 



thermostatic, 344-346 



Turrell's, 176 ; Watson's, 177 ; Zeiss's, 

 179 ; Tolles', 204 



vice, 339 



' Staggers ' of sheep, due to Ccenurus, 



944 



Stahl, on movement of desmids, 581 

 Staining, 488 



regressive, 491 



Bacteria, 514-516 



flagella, 516 



Stains, intra-vitam, 488, 489 



for unfixed tissues, 489 



for fixed tissues, 490, 491 



nuclear, 491-494 



plasma, 494, 495 



Stains, solutions of, methylen blue, 488 ; 

 Bismarck brown, 489 ; Congo red, 489 ; 

 methyl-green, 489 ; neutral-red, 489 ; 

 alcoholic borax-carmine, 490 ; alum- 

 cochineal, 490 ; carmalum, 490 ; heema- 

 lum, 490 ; alcoholic cochineal, 491 ; 

 iron-huematoxylin, 492 ; ' Kernschwarz,' 



