INDEX 



I 167 



PAL 



Paludina, infested by Distoma, 940 

 Pancreas, 1047 

 Pandorinu, 545 



morum, generative process of, 557: 

 swarm-spores of, 557 



Piijiaccracece, laticiferous tissue of, 695 



Paper-cells, 446 



Parabolic illuminator, 816; speculum, 



;;:;:-!; reflector (Sorby's), 334 

 Paraboloid illuminator, 316 

 Paraffin, solvents for, 496 



- imbedding method, 496-503 



- for imbedding, melting point of, 500 



- mounting, sections, 501 



cells, 446 



Paramecium, Colin's experiments on, 

 743 ; contractile vesicles of, 776 



Paraphyses of Puccinia, 638; of lichens, 

 650 ; of mosses, 671 



Parasites, nourishment of, 532 



Parasitic Crustacea, 965 



Fungi, 633 



Parietal utricle, 533 



Parker (T. J.), on Hydra, 863 



Purkeria, 817; a possible Stromato- 



i, seeds of, 724 

 Parthenogenesis, 1007 note 

 - in Saprolegnice, 640 

 Pass/flora ccerulea, pollen-grains of , 721 

 Passiflorecf, pollen-grains of, 721 

 Paste-worm, 945 

 Pasteur's solution for growing yeast, 646 



iiati", his experiments with Bacteria, 



660, 661 

 Patella, shell structure, 928 ; palate of, 



931 

 Path of ray of light through a compound 



microscope, 40 

 Pathogenic bacteria, 658 

 Pavement epithelium, 1044 

 Pear, constitution of fruit, 693 

 ' Pearl oyster.' See Meleagrina 

 Pearls, 923 



' Ptibriue ' in silkworms, 661 

 Peccary, hair of, 1030 

 Pecten, prismatic layer in, 924 ; pallial 



eyes of, 940 ; fibres of adductor muscle, 



1050 



Pectinibrancltiata, 937 

 Pectinidce, sub-nacreous layer in, 924 

 Pedalion, 792 

 Pedalionidee, 792 

 Pedesis, 431 ; experiments in, 432 

 Pediastrece, 566 ; affinities of, 566 

 Pediastrum, zoospores, 567 ; micro- 

 zoospores, 567 



- Ehrenbergii, 568 



ffranulatum, 566-568 

 jii't'tiisiini, 568 



tetras, 568 



PedioellarisB of echinids and asterids, 



889 



Pedici'Uina, lophophore of, 909 

 Pedicularis palustris, 723 

 sylvatica, embryo of, 723 

 Pedunculated cirripeds, 967 



PHA 



Pelargonium, petal of, 719 ; pollen-grain, 



721 



Pelomyxa palustris, 744 

 I'l'in'i-opUs, 801 



variation in shape of shell in, 797; 

 shell of, 799 ; varietal forms of, N03 



Penetrating power, 4'2."> 



in objectives 83 ; of objective, com- 

 pared with illuminating power, 393 

 Penetration, 38, 82, 83 

 Pt'iiiciHium, fermentation by, 647 



glaucum, 643 



Pentncrinus asterius, skeleton of, 892 



Pcntatoma, wings of , 1000 



Penny, starch in cells of, 694 



' Pepperworts,' 681 



Perception of depth, 94 



Perch, scales of, 1028 



Perforated shells of Brachiopoda, 926 



Perforationof shell in Font ininift-ra, 799, 



800 



Perianth, 718 



Perichlamydium pnrtr.i-tiun, 851 

 J'l-riiliitin, 770. 771 

 Peridinium uberrimum, 770 

 Perigone of mosses, 670 

 Periodic structures, 74 

 Periostracum of molluscan shells, 922 ; 



of brachiopod shells, 926 

 Peripatus, tracheae of, 1011 

 Peritheces of lichens, 650 

 PeronosporecE, 638-640 

 Perophora, respirator}- sac of, 915 ; cir- 

 culation of, 915 



' Perspicillum,' Wodderbprn's, 125 

 Petals, 718 



Petrobia lapidum, eggs of, 1009 

 Petrological microscope, Swift's, 1068 

 Petrology : micro-spectroscope in, 1081 ; 



micro-chemistry in, 10 is 2 

 Pettenkofer's test, 517 

 Petunia, seeds of, 724 

 Peziza, botrytis-form of, 645 

 Pfitzer, on reproduction of diatoms, 594 

 Phezodaria, 852 

 PJuposporete, 625-627 

 Phagocytes, 1037 note 

 Phakellia ceiitilcibrnni, 858 

 Phallus, 647 



PHANEKOGAMIA, woody structures, pre- 

 paration of, 514 

 embryo-sac of, free-cell formation in, 



534-536 



- relation of, to Cryptogams, 682, 684 

 and note ; structure of stems, &c., 685, 

 700 ; structure of cells, 686-688 ; inter- 

 mediate lamella, 688 ; intercellular 

 spaces, 688 ; cell-wall of, 692 ; sclerogen, 

 693 ; spiral cells in, 693 ; laticiferous 

 tissue of, 695 ; mineral deposits in cells 

 of, 696 ; woody fibre in, 696 etseq.; fibro- 

 vascular bundles, 697 ; root, structure 

 of, 700 ; epiderm of leaves, 712-718 ; 

 flowers of, 718 ; pollen-grains of, 719 ; 

 fertilisation of, 722 ; ovules of, 722 ; 

 seeds of, 723 

 Phanerogams. See PHANEEOGAMIA 



