XX 



CONTENTS. 



PAOE 



Continuity of Protoplasm Part 5 763 



,. 764 



Osmotic Poucer of Living Protoplasm ., 764 



Structure of Pollen-grains „ 764 



Seeds of Abrus prcecatorius „ 764 



Comparative Anatomy of Cotyledons and Endosperm . . „ 765 



Underground Germination of Isopyrwn thalictroides . . „ 766 



Stomata of Pandanacece „ 766 



Changes in the Gland-cells of Dioncea muscipula during 



Secretion „ 766 



Septal Glands of Monocotyledons „ 767 



Secretory System of Compositce v 767 



Chemical Constituents of Plants ,> 768 



Structure of Leaves „ 769 



Transparent Dots in Leaves . . ,, 769 



Secretory System of the Root and Stem „ 770 



Anatomical Structure of the Root , . . . „ 771 



Grov:th of Roots „ 772 



Growth in length of decapitated and uninjured Roots . . . . „ 772 



Geotropism and Hydrotropism of Roots „ 773 



Water-glands and Nectaries ,, 773 



Folds of Cellulose in the Epidermis of Petals „ 773 



Anatomical Structure of Cork-woods ,t 773 



" Filiform Apparatus " in Viscum album „ 773 



Action of Heat upon Vegetation „ 774 



Relations of Heat to the Sexes of Flowers „ 775 



Influence of Light on the Structure of Leaves of Allium 



ui'sinum „ 775 



Effect of Light and Shade on Pine-leaves „ 775 



Movement of Water in Plants „ 775 



Movement of Water in the Wood „ 776 



Measurement of Transpiration „ 777 



Exhalation of Ozo7ie by Flowering Plants ,, 777 



Acids in the Cell-sap „ 777 



New Colouring Substance from Chlorophyll ., ., . . „ 778 



Crystalline Chlorophyll ,, 778 



Crystals and Crystallites „ 778 



Sphcerocrystals „ 779 



Formation and Resorption of Cystoliths „ 779 



Development of Raphides „ 779 



New Vegetable Pigment „ 780 



Fish caught by Utricularia „ 781 



Observations on Vegetable and Animal Cells Part 6 914 



Structure and Division of the Nucleus 915 



Fornvdion of Endosperm in Daphne ,, 915 



Method of Bursting of Sporangia and Pollen-sacs .. .. „ 916 

 Pollen from Funereal Garlands found in an Egyptian 



Tomb „ 916 



Swelling Properties of Vegetable Cell-membrane „ 916 



Epidermal Tissue of the Root „ 917 



Lenticels , , 917 



