( 853 ) 



INDEX. 



Abbe, E., Effect of Illuminution, &c.j 847. 

 ■ , 1/10 in Apochromatic Objective of 



N.A. 1-63, 805. 

 , Notes on the Effect of Illumination 



by means of Wide-angled Cones of 



Light, 721. 

 Abbe Achromatic Condenser, 609. 

 Abietinese, Fruit-seales of, 407. 

 Hygroscopic Movements in the Cone- • 



scales of, 88. 



Polymorphism of the Leaves of, 245. 



Abranchiate Lamellibranchiata, 740. 

 Acalepha?, Eyes of, 5.S2. 

 Acanthocephala, Female Genital Ducts, 



519. 

 Acarid, New, 638. 

 Acarina, Marine, Coasts of France, 509. 



, of Wimereux, 211. 



Acephala, Edge of Mantle of, 198. 

 Achenes of Coreopsis, 778. 



of the Eose, 778. 



Achorion Schonleinii, Culture of, 296. 

 Acids, Effect of dilute, on Algse, 418. 

 Acqua, C, Formation of Calcium oxalate 



in Plants, 774. 

 Acroblaste, 421. 



Actinise, British, Revision of, 647. 

 Actinian, Remarkable, 530. 

 Actiniaria, Two new Types of, 70. 

 Actinida, North Atlantic, 230. 

 Actinomyces, Staining, 150'. 

 Actinosphasrium cichhorni. Development 



of, 400. 

 Actinozoa, Occasional Presence of a Mouth 



and Anus in, 761. 

 Adametz, L., Saccharomyces lactis, 426. 

 Adams's large Projection and Compound 



Microscope, 438. 

 Address, President's, 169. 

 Adelphotaxy, 192. 

 Adenoma, Staining differences in resting 



and active nuclei in, 712. 

 Aderhold, R., Forces which determine the 



Movements in the Lower Organisms, 



90. 

 Adjustable Safety-stage,. 121. 

 Adlerz, G., Morphology and Larv£e of 



Pantopoda, 509. • 



1889. 



Aducco, v.. Red .Colouring Matter of 



Eustrongylus gigas, 225. 

 Adulteration and Microscope, 136. 

 Ac'gyria oliva, 74. 

 JSoIidiidse, Genera of, 374. 

 Aeulosoma tenebrarum, Green Cells in 



Integument of, 515. 

 Afghan Delimitation Commission, Zoology 



of, 626. 

 Africa, East, Fresh-water Fauna, 494, 733. 

 African Tripoli, Diatoms of, 683. 

 Agalma Ciausi. 393 

 Agamic Multiplication of Lower Metazoa, 



753. 

 Agardh, J. G., Apical cell of Lomentaria 



and Champia, 556. 

 Agaricus olearius. Phosphorescence of, 564. 

 Ahrens' (C. D.) Giant Microscope, 273. 

 modification of Delezenne's Polarizer, 



276. 

 Polarizing Binocular Microscope, 



685. 

 Air, Bacteriological Examination of, 843. 



, Number of Micro-organisms in, 603. 



Aitchison, J. E. T., Zoology of Afghan 



Delimitation Commission, 626. 

 Albumen, Decomposition of, in the absence 



of free oxygen, 92. 

 Albuminoids, Influence of Oxygen in 



Decomposition of, 783. 

 , Products of the Decomposition of, 



in the absence of free oxygen, 253. 

 Albuminous Composition of Cell-walls, 



Growth of, 402. 

 Alburnum, Conduction of Fluids through, 



90. 

 Alcoholic Fermentation of Milk, 783. 

 Alder, Fungus-parasites of, 680. 

 Aleppo Pine, Relation of the Bacilli of, to 



the living tissues, 797. 

 Aleurone-grains, 81. 



and Hydroleucites, 239. 



Alga3, fresh-water, preparations of, 139, 



140. 



. See Contents, xxvii. 



Algophaga pyriformis, 106. 

 Ali-Coheu, C. H., MoYemeuts of Micro- 

 cocci, 795. 

 Alimentary Canal of Larval Lamellicorns, 



504, 



3 o 



