2 
c. General. page 
Zehnder, Ludwig — Origin of Life 582 
Hormann, Georg— Chemistry of Life 582 
Beeton, M., & K. Pearson — Inheritance of Longevity 582 
Burdon-Sanderson, J . — Electric Phenomena associated with Motion in Animals 
and Plants 588 
Thilo, Otto — Clamping Mechanisms in Animals 583 
Yung, E . — Digestion in Dogfish 583 
Abelous, E., & E. Gerard — A Deducing Animal Ferment 583 
Phisalix, C. — Echidnase 583 
Camus, L., & E. Gley — Cellular Immunity 584 
Beclere & others — Vaccinal Immunity acquired hy the Foetus 584 
Nusbaum, J., & S. SiBORiAK— Connection between Ear and Swim- Bladder in Cobitis 
fossilis 585 
P alack v, J. — Distribution of Lizards 585 
Tornier, Gustav — Lizard with Suctorial Tail 585 
Hochstetter, F . — Origin of the Diaphragm 585 
Ward, H. B. — Fresh-water Investigations 585 
Aurivillius, C. W. S . — Fauna of the Swedish West Coast 586 
Zimmer, C . — Plankton of the Oder 586 
Tunicata. 
Pizon, Antoine — Coloration of Tunicates 586 
Metcalf, M. M . — Alleged Otocysts of Salpidee 587 
Schultze, L. S. — Regeneration and the Germ-layer Theory 587 
INVERTEBRATA. 
Thon, C . — Fauna of Frog Spawn 588 
Mollusca. 
y. Gastropoda. 
Camus, L . — Agglutinative Action of Snail’ s Albumen Gland .. . 588 
Biedermann, W., & P. Moritz — Function of Gastric Gland in Snail 588 
Lenssen — Anatomy of Neritina fluviatilis 589 
Tonniges, C . — Development of Paludina vivipara 589 
Heath, Harold — Development of Chiton 589 
5. Lamellibranchiata. 
Drew, G. A . — Contributions to our Knowledge of the Protobranchia 590 
Surbeck, Georg — Swiss Fresh-water Molluscs 590 
Arthropoda. 
Bordage, Edmond — Regeneration in Arthropods 591 
Silvestri, Filippo — Arthropods from Chili 591 
a. Insecta. 
Grassi, B . — Mosquitos and Malaria 591 
Koorevaar, P — Larval Stage of Hypoderma bovis 591 
Pratt, H. S .— Female Genital Tract of Pupipara 591 
Wheeler, W. M . — Instinct and Tropism in Insects 592 
Robertson, C . — Flowers and Insects 592 
Sohwartze, Erich — Development of Lepidoptera 592 
Spengel, J. W. — Variation in Butterflies 593 
Bruyne, C. de — Testis of Hydropliilus j 593 
Seurat, L. G. — Post-embryonic Development of Entomophagous Hymenoptera .. 594 
Guercio, S. Del — Life-History of Trama radicis 594 
Folsom, J. W. — Mouth-parts of Collembola 595 
Bordage, Edmond — Regeneration in (Jrthoptera 595 
Heymons, R. — Corpora allata of Bacillus 595 
Burr, M . — Eumasticides 595 
Janet, Charles — Corselet of Ants 596 
}f )f Tegumentary Glandular System of Myrmica rubra 596 
Myriopoda. 
Causard — Branchial Respiration in Diplopoda 596 
Attems, Carl Graf — Palxarctic Myriopoda - 596 
"Verhoeff, Carl — Palsearctic Geophilidse 597 
5. Arachnida. 
Supino, F . — Structure of P seudoscorpionidx 597 
Wolcott, R. H . — North American Species of Atax 597 
Ihle, J. E. \\ .—Position of Pentastomida 597 
