H38 



INDEX 



ACT 



ActinosplicErium Eichornii, 741 

 Actinotrocha, 950 

 ACTINOZOA, 863, 877-Hw:; 

 Actius, on myopy, 118 

 Actuarius, on myopy, 118 

 Adams' variable microscope, 142; non- 

 achromatic microscope, 148 

 ' Adder's tongue ' fern, 679 ; sporanges of, 



675 



Adipose substance, 1045 

 Adjusting objectives, Ross's, 357, 360 

 Adjustment, coarse, 159-162; Swift's 

 diagonal rack, 161 ; Nelson's stepped 

 rack, 161 ; Wale's, 224-226 

 - fine, 162-175 



- Ross's, 153,155,175; to Pritchard s 

 microscope, 153 ; Watson's long 

 lever, 162, 172, 175; 'Continental 1 

 type, 162 ; Swift's vertical side 

 lever, 16?, 173, 174; Campbell's 

 differential screw, 164, 165, 175, 

 230 ; Zeiss's, 166, 175 ; Reichert's 

 new lever, 171, 175 ; Powell's, 174 ; 

 short side lever, 174 ; speeds of, 

 175 ; to the sub-stage, Nelson's, 

 185 ; for Powell and Lealand's sub- 

 stage, 186 



screw collar, 360 



.^Ecidiospore generation of Pitccinia, 



637 

 JEcidium berberidis, relation to Puc- 



cinia, 637 



tussilaginis, 638 



JEthaUum septicum, plasmode, of, 634 

 Affnricus, 647 



campestris, 648 

 Agate, 1095 



Agave, leaf of, 686 ; raphides of, 696 

 Agrioii, 987 



pulchellum, wing of, as test for defi- 

 nition, 426 



pueila, pupa of, 994 ; wing of, 994 

 Air-angle, 50, 78 



Air-bubbles, microscopic appearance of, 



429, 430 



Air-chamber of leaves, 716 

 Alas of Surirella, 606 

 ' Alar prolongations ' in Fiisiilhui, 826; 



in Niuinnidites, 8'27, 831; of Calca- 



rina, 830 

 Albite, 1080 

 All luminous substances, tests for, 516, 



517 



Alburnum, 704, KM 

 Alcohol, as solvent for resins, A:c., 517; 



as hardening agent, 4)S4 

 .\/i-i/onaria, 877, 879; spines of, imi- 

 tated, 1101 



Alcyonian, resembled by poly/onn, llnis 

 .\/i-i/iniii/iiii; 908 ; polyxoary of, 909 



- f/i'/iitii/'Osinii, calcareous spicules in, 



908 note 

 llcyonium i/ii/ituf/m/, HT.\; spiculeg of, 



SSI I 



Alder, on branchial sac of Cor/'lln, 912 



note 

 Alexander, on mynpy and prcsbyopy, 118 



ANA 



ALG.E, preparation of, 514 ; included 

 under general term of ' thallophytes,' 

 540 ; symbiotic in radiolarians, 848 



- lime secreting, 1084 



Algal constituents of lichens, 650 



Alkaloids, micro-chemical examination of, 

 1103 



Allman's experiments on luminosity of 

 Noctiluca, 769 



Allman, on Polyzoa, 909 ; on the ' Hau> 

 of Appendieularia, 918; on Myri<>- 

 thela, 863 note 



Aloe, raphides of, 696 



Alternation of generations in Batraclio- 

 spermniti, 575 ; in Fungi, 634; in ferns, 

 680; in Medusa, 877 



Althaea rosca, pollen-grains, 721 



Alveolina, 804 ; resembled by Loftusia, 

 818; resembled by Fusulina, 825 



AmaranthacetB, pollen-grains, 721 



Ainnrantliiin hypochondriacus,&eeAs of, 

 724 



. J iiiurouciiim proliferum, as example of 

 compound ascidian, 912 



Amici suggests oil for immersion lenses, 

 29 



Amici's invention of immersion system, 

 27 ; horizontal microscope, 148 ; camera 

 lucida, 279 ; objectives, 355 ; triple- 

 back objectives, 361 ; water-immersion 

 objectives, 362; oil-immersion objec- 

 tives, 364 



Ammodiscus, 814 



Ainmothea pycnogonoides, 958 



Amoeba, 733, 742-747, 1018 



.4.wce&rt-phase of Monns, 756 



Amoeba proteus, 742 

 - rii/liosa, experiments on, 743 



Aincelxe, cells of sponges resembling, 

 855 



Amoeboid phase of Tetramitits, 761 



Amphibians, plates in skin of, 1026 



Amphioxus, affinities with ascidians, 917 

 note 



Ampliipleura pelluclda, with oblique 

 illumination, 59, 75 ; resolution of, 85 ; 

 markings measured, 274 ; markings 

 on, 592 



Amphistegina, 827; internal cast of, 



841 



Amphitetras, 614 

 Auipliiuina, red blood-corpuscle (jf, licii; 



AinjiJ/uni/.r, haustellium of, 992 



Amplification, SS-'.H) 



linear, 26, Ml); of images, 45 

 Ampullaceous sacs of sponges, 856, 857 

 Anaboena, 548 



Anacluu'is, 5-js 



alsinastri/ni, eyelosis in,(;s;t ; habitat. 

 690 



A>iai/n//it, rMphides nf, ('.'.M'.; seeds of, 

 724 



iiri'fiinin, petals of, 719 

 Anal plate of .\ nti-tlmi, '.Mil! 

 An<ilii<-xin<r, 1013, 1014 

 Analyser, 318 

 Analysing nose-piece, -J'.M 



