1101 



INDEX. 



Spectroscope, Hsema-, Thierry's, 523. 



Spectrum, Solar, Effect of different 

 parts of, on Transpiration, 476. 



Spencer and Tolles Memorial Fund, 

 530. 



Objectives and Quekett, L069. 



, W. B., Parietal Eye of Hatteria, 



580. 



Spengel, J. W., Becker's Sliding Micro- 

 tome, 884. 



Sperm-movements, Kegularity of, 964. 



Spermatic Elements of Cockroach, Pre- 

 paring, 1073. 



Spermatogonia, Staining, 351. 



Spermatogenesis, 42, 590. 



in Amphibians, 935. 



in Mammals, 209, 574. 



in Pnlmonata, 50. 



of Bombinator, 45. 



Spermatozoa, Development of, 41. 



, Preparing, 1070. 



Sphferiaceai, New, 833. 



Sphperidia of Echinoids, Structure and 

 Function of, 80. 



Sphaerocrystals of Calcium Oxalate in 

 the Cactaceae, 90. 



Sphasrosoma fragile, 665. 



Sphaerotherium, Anatomy of, 238. 



Sphaerularia Bombi, 248. 



Sphagnaceae, Classification of, 108. 



Sphagnum, Microspores of, 830. 



Spicer, E. C., Sense of Hearing in Ants, 

 61. 



Spiehardt, C, Development of Male 

 Generative Organs in Lepidoptera, 

 968. 



Spicules of Calcisponge, Artificial De- 

 position of Crystals of Calcite on, 

 629. 



, Siliceous Sponge-, from the Chalk, 



258. 



, Sponge, 628. 



, , from the Horn-stone of 



Brusan, 258. 



Spiders. See Arachnida. 



Spinal Cord, Nuclear Division in, 944. 



, Preparing, 156. 



Ganglia of the Frog, Preparing, 



1072. 



, Preparing, 535. 



Spiral Thread, Nature and Origin of 

 the, in Tracheae, 789. 



Spirilla Recurrens in Blood-prepara- 

 tions, Staining, 712. 



, Staining, in Blood-preparations, 



353. 



Spirochona, 460. 



Sponge, 181. 



Sponges. See Porifera. 



Spongilla fragilis, 82. 



Spontaneous Division in Fresh-water 

 Planarians, 991. 



Sporangium of Ferns, Bursting of, 828. 

 , Dehiscence of, 1020. 



of Hepaticae, Development and 



Dehiscence of, 1021. 



of Lejeunia, Abnormal Develop- 

 ment of, 482. 



Spore-formation, Endogenous, in the 

 Hyphomycetes, 488. 



Germination, Method of, 341. 



Spores, Formation of, in the Sacoha- 

 romycetes, 492. 



, Fungus- and Pollen-grains, Ger- 

 minating, 312. 



, Mode of Dissemination of, in Vas- 

 cular Cryptogams, 479. 



of Equisetum, Influence of tho 



Direction of the Light on the Division 

 of, 287. 



of Fungi, Acrogenous Develop- 

 ment of, 832. 



of the Sehizomyeetes, Behaviour 



of, to the Anilin-dyes, 666. 

 of UstilagoVaillantii, Germination 



of, 832. 

 , Vitality of, of Parasitic Fungi, 



663. 

 Sporogonium of Mosses, Assimilating 



System of, 656. 

 Sporozoa, Notes on, 1006. 

 Springer, F., and C. Wachsmuth, Re- 

 vision of the Paleocrinoidea, 255, 997. 

 Spruce, R., Hepaticae of the Amazon 



and Andes, 657. 

 Sputa, Asthmatic, Parasitic Protozoa 



in, 464. 

 Staby, L., Closing of the Scar after the 



Fall of the Leaf, 474, 1009. 

 Stage, Combined Focusing and Safety, 



for use in Micrometry with High 



Powers, Vorce's, 517. 

 , Cramer's Movable, 848. 



for Stereoscopic Photo -micro- 

 graphs, 325. 



, Hot, Israel's Warming Apparatus 



as a substitute for, 860. 

 , Mechanical (removable) with 



rectangular Movements, 337. 



, Reich ert's New, 307. 



, Simple and Handy Compound 



Selenite and Mica, 150. 



, Swift's Cam Mechanical, 1052. 



Stages, Mechanical, 687. 



Stahel, H., Determining the Thickness 



of Arterial Walls, 864. 

 Stab], E., Influence of the Direction cf 



the Light on the Division of the 



Spores of Equisetum, 287. 

 Stain, Application of Weigert's modified 



Hematoxylin, to the Peripheral 



Nervous System, 544. 

 for Nerve-centres, Picro-nigrosin 



as a, 352. 



