INDEX 



1167 



PAL 



PHA 



Paludina, infested by Distoma, 946 

 Pancreas, 1047 

 Pandorina, 545 



morum, generative process of, 557; 

 swarm-spores of, 557 



Papaveracece, laticiferous tissue of, 695 



Paper-cells, 446 



Parabolic illuminator, 316; speculum, 



333; 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, Conn's experiments on, 

 743 ; contractile vesicles of, 776 



Paraphyses of Puccinia, 688 ; of lichens, 

 650 ; of mosses, 671 



Parasites, nourishment of, 532 



Parasitic Crustacea, 965 



Fungi, 633 

 Parietal utricle, 533 

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

 Parkeria, 817; a possible Stromato- 



poroid, 817 note 

 Parnassia, seeds of, 724 

 Parthenogenesis, 1007 note 



in SaprolegnicB, 640 



Passiflora coerulea, pollen-grains of, 721 

 Passiflorece, pollen-grains of, 721 

 Paste-worm, 945 

 Pasteur's solution for growing yeast, 646 



note ; 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 



' P^brine ' in silkworms, 661 

 Peccary, hair of, 1030 

 Pecten, prismatic layer in, 924 ; pallial 



eyes of, 940 ; fibres of adductor muscle, 



1050 



Pectinibranchiata, 937 

 Pectinidce, sub-nacreous layer in, 924 

 Pedalion, 792 

 Pedalionidce, 792 

 Pedesis, 431 ; experiments in, 432 

 Pediastrece, 566 ; affinities of, 566 

 Pediastrum, zob'spores, 567 ; micro- 



zoospores, 567 



Ehrenbergii, 568 



granulatum, 566-568 



pertusum, 568 



tetras, 568 



Pedicellariae of echinids and asterids, 



889 



Pedicellina, lophophore of, 909 

 Pedicularis palustris, 723 



sylvatica, embryo of, 723 

 Pedunculated cirripeds, 967 



Pelargonium, petal of, 7i9 ; pollen-grain, 



721 



Pelomyxa palustris, 744 

 Peneroplis, 801 



variation in shape of shell in, 797; 

 shell of, 799 ; varietal forms of, 803 



Penetrating power, 425 

 in objectives 83 ; of objective, com- 

 pared with illuminating power, 393 

 Penetration, 38, 82, 83 

 Penicillium, fermentation by, 647 



glaucum, 643 



Pentacrinus asterius, skeleton of, 892 

 I Pentatoma, wings of, 1000 

 i Peony, starch in cells of, 694 

 i ' Pepperworts,' 681 



Perception of depth, 94 

 1 Perch, scales of, 1028 



Perforated shells of Bracliiopoda, 926 



Perforation of shell in Foraminifera, 799, 

 800 



Perianth, 718 

 ; Perichlamydium prcetextum, 851 



Peridinia, 770. 771 



Peridinium uberrimum, 770 



Perigoiie of mosses, 670 



Periodic structures, 74 



Periostracum of molluscan shells, 922 ; 

 of brachiopod shells, 926 



Peripatus, tracheae of, 1011 



Peritheces of lichens, 650 



PeronosporecB, 638-640 



Perophora, respiratory sac of, 915 ; cir- 

 culation of, 915 



' Perspicillum,' Wodderborn's, 125 



Petals, 718 



Petrobia lapidum, eggs of, 1009 



Petrological microscope, Swift's, 1068 



Petrology : micro-spectroscope in, 1081 ; 

 micro-chemistry in, 1082 



Pettenkofer's test, 517 

 I Petunia, seeds of, 724 



Peziza, botrytis-iorm of, 645 

 i Pfitzer, on reproduction of diatoms, 594 

 I Phceodaria, 852 

 j Phceosporece, 625-627 

 i Phagocytes, 1037 note 

 j Phakellia ventilabrum, 858 

 I Phallus, 647 



j PHANEROGAMIA, 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 et seq.; 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 PHANEROGAMIA 



