iv CONTENTS. 



PAGE 



The Most Recent Values of the Magnetic Elements at the Principal 



Magnetic Observatories of the World, - - - - - 4 2 9 



On the Succession and Genesis of Mammalian Teeth, - - - 43^ 



Chemical Literature for May, 1894, - - - - - - 453 



Recent Work on the Morphology of Tissues in the Higher Plants, - 463 



The Arrangement of the Molecules in a Crystal, ... - 483 



Critical Remarks on the Theories of Epigenesis and Evolution, - 501 



Electromotive Phenomena in Glands, ------ 509 



Atomic Weights, ---------- 527 



Chemical Literature for June, 1894, 545 





