CONTENTS. 



PAGE 



Physical Science and its Connections, - i 



On the New Theory of Solutions, - - - - - - - 12 



On Insular Floras, - - - -' 27 



Fossil Plants, .......... a 2 



On the Origin and Nature of Certain Bacterial Poisons, 64 



On the Present Outlook of Vertebrate Morphology, - - - 73 



On Chemical Physiology, 91 



Epigenesis or Evolution, - - - - - - - - 105 



On our Present Knowledge of the Numerical Value of the Mechanical 



Equivalent of Heat, 127 



Researches on Proteid Metabolism, 141 



The Evolution of Igneous Rocks, - 152 



Vermes, Ccelenterata and Protozoa, 166 



On the Study of Adaptation in Plants, - - - - - - 176 



The Determination of the Available Plant Food in Soils, - - 193 



The Embryology of the Porifera, - - - - - - - 208 



Some Aspects of the Immunity Question, - 234 



Experiment in Mineralogy, 249 



Algae, - - - 261 



Jottings from Recent Neurological Progress, 272 



Pure Yeast and its Relations to Brewing Operations, - - - 289 

 Electrosynthesis, - - -.- - - - - - -301 



Glycogen, - - - - - - - - -- -311 



Mesozoic and Kainozoic Geology in Europe, 320 



The Localisation of Enzymes in Plants, ------ 342 



Recent Additions to our Knowledge of the Ancient Sediments, - 356 



Ionic Velocities, - - - - - - -^ - - - 373 



Insular Floras (ii.), 387 



On the New Theory of Solutions (ii.), 405 



Italian Anthropometry, 420 



3 891 1. 



