CONTENTS. 
Transactions of the Society — 
PAGE 
XI. — Algaj of the English Lake District. By Wm. West, F.L.S, 
(Plates IX. and X.) 713 
XII. — The Foraminifera of the Gault of Folkestone. — III. By 
Frederick Chapman, F.R.M.S. (Plates XI. and XII.) .. 749 
SUMMARY OF CURRENT RESEARCHES. 
ZOOLOGY. 
A. VERTEBRATA : — Embryology, Histology, and General, 
a. Embryology. 
Muller, J . — Gamophagy 759 
Rabl, C. — Theory of the Mesodetm „ 759 
Virchow, Hs. — Yolk- Organ of Vertebrates .. 760 
Ebner, V. v. — Vertebree and Protovertebrse 761 
Beraneck, E . — Parietal Eye and Nerve 761 
Ayers, H— Vertebrate Ear 762 
Jordan, E. O., & A. C. Eycleshymer — Cleavage of Amphibian Ovum 762 
Cbety, C . — Vascular Papillx in Discus proligerus of Capra 763 
Fiserius, E . — Development of the Squirrel 763 
Nagel, W . — Development of Bladder .. 763 
Hamburger, O . — Development of the Pancreas 763 
Rose, C . — Dentition of Young Edentata 763 
Ballowitz, E . — Enamel Organ in Edentates 761 
Klinckowstrom, A . — Apical Spot in Embryos of Swimming Birds 764 
Winkler, F . — Origin of Pigment in Bufo 764 
Grassi, G. B., & S. Calandruccio — Leptocephalidx ., .. 764 
Straehley, E. O . — Abnormal Segmentation .. 764 
f}. Histology. 
Fick, R . — Central Corpuscles 765 
Weiss, J . — Histology and Micro-Chemistry of Blood .. .. 765 
Gehuchten, A. Van — Nerve-cells of the Sympathetic System of Mammals .. .. 765 
„ „ „ Structure of Optic Lobes of Chick, 765 
Lenhossek, M. v . — Spinal Cord and Ganglia of Pristiurus-Embryos 766 
y. General. 
Ardissone, F . — The Living Organism 766 
Dreyer, F. —Principles of Skeleton-forming 767 
Ryder, J. A . — Mechanical Genesis of Scales of Fishes 767 
Alcock, A . — Commensalism between a Gymnoblastic Anthomedusoid and a Scorpee- 
noid Fish 768 
B. INVERTEBRATA. 
Mollusca, 
y. Gastropoda. 
Jhering, H. von — Genital Apparatus of Helix .. .. .. 768 
Haller, B . — Morphology of Prosobranchiata 769 
„ „ Anatomy of Siphonaria 770 
Mazzarelli, G . — Alleged Anal Eye of Larval Opisthobranchs 770 
Griffiths, A. B . — Bespiratory Globulin in Blood of Chitons .. .. 771 
Heuscher, J . — Anatomy and Histology of Proneomenia Sluiteri 771 
Cooke, A. H . — Land Mollusca of the Philippine Islands 772 
5. Lamellibranchiata. 
Grobben, C . — Classification of Lamellibranchs .. .. 772 
Rawitz, B . — The Mantle-margin of Acephala 772 
Molluscoida. 
a. Tunicata. 
Garstang, W . — Development of Stigmata in Ascidians 773 
Hjort, J . — Developmental Cycle of Compound Ascidians 773 
Willey, A . — Development of Hypophysis in Ascidians 774 
Butschli, O . — Eyes of Salpae 775 
Willey, A. — Post- Embryonic Development of Ciona and Clavelina 776 
Kowalevsky, A .— Formation of Mantle in Ascidians .. .. 776 
Herdman, W. A . — A Functional Hermaphrodite Ascidian.. 776 
B. Iiycica. 
Waters, A. W. — Gland-like Bodies in Bryozoa 777 
y. Brachiopoda- 
Beecher, C. E . — Development of Brachiopoda 777 
Arthropoda. 
o. Insecta. 
Wheeler, W. M . — Appendages of First Abdominal Segment of Embryo Insects .. 777 
Urech, F. — Scale-Pigments of Lepidopter a .. 778 
