2-16 EDINBURGH NEW PHILOSOPHICAL JOURNAL, EXHIBITING A VIEW OF THE PROGRESSIVE DISCOVERIES AND IMPROVEMENTS IN THE SCIENCES AND THE ARTS. EDITORS. THOMAS ANDERSON, M.D., F.R.S.E., REGIUS PROFESSOR OF CHEMISTRY, UNIVERSITY OF GLASGOW; SIR WILLIAM JARDINE, BART., F.R.S.E.; KEGIUS KEEPER OF THE ROYAL BOTANIC GARDEN, AND PROFESSOR OF MEDICINE AND BOTANY, FOR AMERICA, HENRY D. ROGERS, LL.D., Hon. F.R.S.E., F.G.S., STATE GEOLOGIST, PENNSYLVANIA; PROFESSOR OF NATURAL HISTORY IN THE EDINBURGH : ADAM AND CHARLES BLACK. LONGMAN, BROWN, GREEN, & LONGMANS, LONDON. : CONTENTS. 1. Observations on the Genetic Cycle in Organic Nature, and particularly on the Relation between the different Forms of Alternation of Generations and the more Ordinary Modifications of the Reproductive Process. BY GEORGE OGILVIE, M.D., Lecturer on the Institutes PAGE 3. On the Vestiges of Extinct Glaciers in the Lake Districts |