^ ) 



Stjmmaey of Cueeent Reseal ;s, &c. — continued. 



PAGE 



Sternaspis .. .. - ■ .. .. .. .. .. 48 



Hamingia glaeialis .' - . . . . 50 



Ecliinorhyncltus .. ., 51 



Proscolex of BiUiarzia 1 -^ da 51 



Nervous System of Ces\ ^ .' , 51 



Development of the Ovui bf Melicerta , 53 



Development of the Skeleton pf the Ophiurida 55 



Aster las 56 



Spines of Aster oidea 57 



Prodrome of the Anthozoan Fauna of Naples 57 



Metamorphoses of Cassiopeia iorhonica .... . . . , 58 



Development of Geryonopsida and Eucopida 58 



Fission of Phialidium variubile , 59 



Crambessa tagi , 59 



Sexual Cells of Hydroida . , , . 60 



Spermatozoa of Hydrozoa .. ,. 60 



Attempt to Apply Shorthand to Sponges ,. 61 



Flagellata , ,. 62 



Infusoria Parasitic in Cephalopods 63 



Parasites of the Echiurida .. ., ,. 63 



Botany. 



Origin of the Embryo-sac and Functions of the Antipodal Cells 64 



Polyemiryony in MimosesB 65 



Resistance of Seeds to extreme Cold , . . , , 66 



Mechayiical Contrivances for the Dispersion of Seeds and Fruits 66 



Chemical Difference between dead and living Protoplasin 67 



Energy of Groivth of the Apical Cell and of the youngest Segments .. .. 67 



Action of Nitrous Oxide on Vegetable Cells 68 



Chlorophyll and the Cell-Nucleus .. 69 



Influence of Warmth of the Soil on the Cell-formation of Plants 70 



Growth of Starch-grains by Intussusception 70 



Collenchyma 7I 



Epidermis of the Pitchers of Sarracenia and Darlingtonia 72 



Laticiferous Vessels ., ,. 73 



Epidermal System of Boots .. , 73 



Passage from the Boot to the Stem 74 



Causes of Eccentric Growth 74 



Hydrotropism of Boots . . . . , 74 



Cause of tJie Swelling of Boot-fibres 75 



Franli's Diseases of Plants 75 



Prothallium and Embryo of Azolla .. .. 76 



Development of the Sporangia and Spores of Isoetes 78 



New Genera of Mosses , ^ ^ 79 



Classification of Sphagnacese .. .. , 79 



Cell-nucleus in Chara foetida , 79 



Conidial Apparatus in Hydnum 80 



Alternation of Generations in JJredinese .. .. .. §0 



Mode of Parasitism of Puccinia Malvacearum 80 



Sterigmatocystis ,. 80 



Oospores of Phytophthora infestans 81 



Peronospora viticola , .. ,. 81 



Vegetation of Fungi in Oil 81 



Parasitic Fungi ., ,, 83 



Ear-Fungi 83 



Insect-destroying Cryptogam 83 



Bref eld's Schimmelpilze 83 



Influence of Light on the Growth of Penicillium 87 



Production of Microphytes within the Egg .. 87 



Etiology of Diphtheria 87 



Properties and Functions of Bacteria 88 



Atmospheric Bacteria 88 



Pathogenous Bacillus in DrinJcing Water , 89 



Connection of Diseases icilh Specific Bacilli 89 



a 



