1009 



Swarmspores (Zoospores), Action of 



Light aud Heat on, 307. 

 Swinging Tailpiece, Microscopes with, 



320. 

 Symbiosis, 594. 



Table, Electrical Mounting, 469. 



of Numerical Apertures, 839. 



Tseniadae, Anatomy and Embryogeny 

 of, 285. 



Tsenise, Development and Metamor- 

 phoses of, 162, 878. 



Ta;nia, New Species of, 722. 



Tailpiece, Microscopes with Swinging, 

 320. 



Tannin in Vegetable Cells, 595. 



Tape-worm of the Shrew, Life-history 

 of, 575. 



Tarantulida, New Division of, 869. 



Teleostei, Sexual Organs of, 694. 



Temperature of 100° C, Resistance of 

 Germs to, 602. 



Tendra zostericola, Embryology of, 707. 



Termination of the Visceral Arterioles 

 in Mollusca, 164. 



Terrestrial Diatoms. 762. 



Test Objects, Use and Abuse of 

 Diatoms as, 183. 



Tetrapteron volitans, 172. 



Tetraspores and Antheridia of Griffith- 

 sia setacea, Development of, 934. 



and Siphons in Polysiphonia, 



Formation of, 932. * 



Thallophytes, New Classification of, 

 166. 



Thallus of the Diatomacese, 38, 608. 



Thin Stages, 465. 



Tlireads, Mucous, of Limax, 304. 



Thuret and Bornet's ' Phycological 

 Studies,' 311. 



Tintinnus semiciliatus, a new Infusor, 

 587. 



Tissue, Conducting, for tlie passage of 

 Pollen-tubes, 910. 



, Connective, 694. 



Tissues, Animal, Delicate and Perish- 

 able, Method of Preserving, 461. 



, Refractive Powers of, 697. 



, Cellular, and Air-sacs of Birds, 



Acarina found parasitic in, 415. 



of Plants, Fermentation in, 442. 



, Vegetable, Morphology of, 801. 



, Staining Fluids for, 942. 



Toilet Habits of Ants, 556. 



ToUes, R. B., an Illuminating Traverse- 

 lens, 388. 



Tolles' i Immersion Objective, Note on 

 Diagrams exhibiting the Path of a 

 Ray tlirough, 269. 



^i_ Objective, 951. 



Tomopteridse, the, 155. 



Tongue, Nature of the Fur on, 756. 



Tooth Forms, Mechanical Genesis of, 



696. 

 Toxic Effects, Injection of Bacteria into 



tiie Blood without, 760. 

 Tracheal System of Glomeris, 414. 

 Transverse Processes and Ribs, 



Development of, 693. 

 Travelling Microscope, Zeiss's, 955. 

 Traverse-lens, an Illuminating, 388. 

 Treasurer's Accounts for 1878, 218. 

 Trematod, Marine Ectoparasitic, Re- 

 productive Organs of, 573. 

 Trematoda, Monogenetic, Classification 



of, 728. 

 Trematodes, Entoparasitic Marine, 728. 

 Trichina3, 159. 



, Searching for, 465. 



Trichina-phobia at Berlin, 159. 

 Trichinosis in a Young Hippopotamus, 



571. 

 Trilobites and Limuli, 874. 

 Triton, Nuclei of the Blood-corpuscles 



of, 272. 

 Trout, Vitality of the Spermatozoa of, 



844. 

 Tubes in the Nostoc-colonies iu Blasia, 



Origin of, 598. 

 Tubuiaria mesembryanthemum, 585. 

 Tunicata, New, 407. 



, Power of Locomotion in, 302. 



Turbellaria, Notes on, 723. 

 Turbellarian, New, 286. 



Worms of Norway, Jensen's, 573. 



Turbcllarians, Fresh-water, Digestive 



Organs of, 287. 

 Turntables, Improved, 617. 

 , Mechanical, 616. 



U. 



Ulvacese, Reproduction of, 186. 



Unionida^, Foot of, 303. 



Unit of Micrometry, 154, 221, 332, 488, 



620, 947. 

 " Universal Apertometer," Hamilton 



Smith's, 775. 

 Uredinese, Specific Differences among, 



759. 

 Urocystis Cepulse, Onion-smut, 921. 

 Ustilaginea;, Neovossia, a new Genus 



of, 760. 



V. 



Value, Scientific, of Microscopic Pre- 

 parations, 943. 



Vascular Cryptogams. See Contents, 

 xvii. 



Vaucheria geminata. Resting Condition 

 of, 607. 



, Parasitism of Notommata on, 291. 



3x2 



