1001 



Leaves, Aerial, Effects of Submersion on, 

 and of Water on Floating Leaves, 750. 



and Petals, Growing, Movements 



of, 751. 



, Cliemical Composition and Func- 

 tion of, 442. 



Leech, Horse, Abnormal Sexual 

 Organs ill, 156. 



Leighton's Lichen-Flora, 604. 



Length, Measures of, Comparators for, 

 947. 



Lenses, Achromatic, 173. 



Lepidoptera, Odoriferous Cells in, 298. 



, Scales of, 866. 



, Seasonal Dimorphism in, 298. 



Leptodora hyalina, Anatomy of, 825. 



Leptothrix, Experimental Researches 

 on a, 454, 928. 



Lettuces, Fungus Disease in, Perono- 

 spora gangliiformis, 316. 



Leuconostoc mesentei'oides, Sugar- 

 refining Gum, 928. 



Lichenes. See Contents, xix. 



Lichenological Review, 761. 



Life-histories of Entozoa, Prizes for, 

 878. 



Life-history of the Diatomacefe, 181. 



Light and Heat, Action of, on Swarm- 

 spores (Zoospores), 307. 



, Effect of, on Pelomyxa, 591. 



, Influence of, on Fungi, 314, 



, Influence of, on the Movements of 



Desmids, 937. 



, Influence of, on the Movements 



of Mobile Spores, 447. 



, Warmth, and Moisture, Influence 



of, on the Opening and Closing of 

 the Anthers of Bulbocodium veruum, 

 9 Li. 



Limax, Mucous Threads of, 304. 



Limicolous CLtdocera, 153. 



Limits of Accuracy in Measurements 

 with the Microscope, 473. 



of Microscopic Vision, Further 



Inquiry into, &c., 9. 



Limuli and Trilobites, 874. 



Lion, Ascaris parasitic in, 729. 



Lithamceba discus, a new Rhizopod, 

 900. 



Littorina, Peculiarity in, 401. 



Liver and Digestion of the Cephalo- 

 podous Mollusca, 405. 



" Liver " of tlie Invertebrata, 701. 



Lobster and Crayfish, Heart of, 423. 



, Blood of, 715. 



, Muscle and Nerve in. Physiology 



of, 872. 



, Phosphorescence of the Flesh of, 



151. 



Locomotion of the Terrestrial Gastero- 

 poda, 399. 



, Power of, in the Tunicata, 302. 



Locomotor System of Medusae, 171. 

 Logwood Staining Solution, 940. 

 Lower Organisms, Preparation and 



Preservation of, 462. 



Plants, " Plastids " of, 170. 



Lowest Forms of Life, Bacteria, Lichens, 



and Bacillus Organisms, 69. 



Organisms, Anomalies in the 



Development of, 446. 



Loxosoma, 553. 

 I Luerssen's Handbook of Cryptogamic 

 j Botany, 445. 



I Luminous Bacteria in Meat, 310. 

 j Lytta vesicatoria, the Blister Beetle, 

 [ Metamorphoses of, 708. 



I M. 



I Magelona, Anatomy of, 567. 



j Male Organs of the Decapodous Cnis- 



I tacea, 420. 



j Malformation in an Insect, 558. 



Malpighian Vessels of Insects, 60. 



Mammalia, Male and Female Genital 

 Glands of, Evolution of, 397. 



Mammalian Retina, Optic Nerve 

 Fibres and Ganglion-cells of. Isola- 

 tion of, 614. 



Man and other Mammalia, Develop- 

 ment of the Ova and Structure of 

 the Ovary in, 845. 



Marble, Borings of a Sponge in, 82. 



Marseilles, Coasts of, Zoantharia 

 malacodermata of, 892. 



Marsh and Water Plants, Re.spiration 

 of, 915. 



Fever, Poison of, 926. 



Matthews' Micro-Megascope, IGO. 



Section -cutting Machine, 957. 



Mayall, J., jun., Aperture Measm-ementa 

 of Immersion Objectives, 842. 



, Immersion Illuminators, 27. 



, Immersion Stage Illumi- 

 nator, 837. 



I , the Aperture Question, 134. 



, Measure for Covering-glass, 65. 

 I Measurement of the Amplification of 

 Optical Instruments, 184. 



of the Angle of Aperture of 



Objectives, Note on Mr. Wenh:im's 

 Paper on, 270. 



Measurements, Aperture, of Immersion 

 Objectives, 842. 



with the ]\Iicroscope, Limits of 



Accuracy in, 473. 



Measures of Length, Comparators for, 



947. 

 Measuring Aperture, 781. 



the Solid Angles of Microscopic 



Crystals, Process for, 323. 



Meat, Luminous Bacteria in, 310. 

 Mechanical Finger, Rezner's, 951. 



