YIU 



CONTENTS. 



Summary of Ccrrent Kesearches relating to Zoology and Botany (princi- 

 pally Inyertebrata and Cryptogamia), Microscopy, &c., iNCLrDiNQ 

 Original Communications from Fellows and Others.* 



23, 173, 314, 478, 601, 757. 

 ZOOLOGY. 

 A. — General, including Embryology and Histology of the Vertebrata. 



PAGE 



Photographs of the Developmental Process in Birds . . . . Part 1 23 

 Development of the Paired Fins of Elasmobranchs .... „ 23 



Development of the Sturgeon „ 24 



Development of Petromyzon Planeri ,, 26 



White Corpuscles of the Blood „ 27 



Nerve-endings of Tactile Corpuscles „ 28 



Distribution and Termination of Nerves in the Cornea . . „ 29 



Influence of Food on Sex „ 30 



Germinal Layers and Early Development of the Mole . . Part 2 173 



Development of Amphioxus ,, 174 



Large Nerve-fibres in Spinal Cord of Pike „ 295 



Germinal Layers of the Chick Part 3 314 



Development of Lepidosteus ,, 316 



Spermatogenesis in Vertebrates and Annelids „ 316 



Cell-structure ,, 317 



Theory of Amxjsboid Movements „ 319 



Distinctions between Organisms and Minerals „ 320 



Division of Embryonic Cells in the Vertebrata Part 4 478 



479 

 479 

 480 

 481 

 483 

 601 

 602 

 757 

 758 

 762 



763 



Genesis of the Egg in Triton 



Formation of Fibrine 



New Blood-corpuscle 



Life and Death in the Animal Organism 



Pelagic and Deep-Sea Fauna 



Symbiosis of Dissimilar Organisms Part 5 



Electric Organs of Gymnotus 



Spermatogenesis in Mammalia Part 6 



Early Changes of the Chick 



Dimensions of Histological Elements 



Influence of the External Medium on the Saline Constituents 

 of the Blood of Aquatic Animals „ 



B. — Inveetebeata. 



Fossil Organisms in Meteorites Part 2 



Bed Pigment of Invertebrates f^Tetronerythrine') .. .. „ 

 " Symbiosis of Animals icich Plants " — Chlorophyll-corpuscles 



and Amyloid Deposits of Sp)ongilla and Hydra .. .. Part 3 

 PalcBontological Significance of the Tracks of Different 



Invertebrates „ 



Lymph of Invertebrates ,, 



Intracellular Digestion Part 5 



176 

 178 



322 



324 



327 

 602 



* The titles of the papers and notes printed in the ' Transactions ' and ' Pro- 

 ceedings ' are also included here to make the classification complete. 



