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A QUARTERLY REVIEW OF CURRENT SCEENTIFIC INVESTIGATION, 



Conducted by HENRY C. BURDETT. 



Edited by J. BRETLAND FARMER, M.A. 



WITH THE CO OPERATION OF THE FOLLOWING EDITORIAL COMMITTEE:— 



H. E. ARMSTRONG, F.R.S., Professor of Chemistry at the City and Guilds of London Institute for Technical 



Education. 

 W. R. DUNSTAN, F.R.S., Professor of Chemistry, St. Thomas' Hospital and Pharmaceutical Society, 



London. 

 G. F. FITZGERALD, F.R.S., Professor of Natural and Experimental Philosophy in the University of Dublin. 

 C. S. SHERRINGTON, F.R.S., Professor of Physiology in University College, Liverpool. 

 J. W. JUDD, C.B., F.R.S., Dean of the Royal College of Science, London. 

 W. J. SOLLAS, F.R.S., Professor of Geology in the University of Dublin. 

 Q. B. HOWES, F.Z.S., Professor of Zoology, Royal College of Science, London. 

 H. MARSHALL WARD, F.R.S., Professor of Botany in the University of Cambridge. 

 H. A. MIERS, F.R.S., Professor of Mineralogy in the University of Oxford. 



JANUARY, 1897. 



CONTENTS. 



LIQUID CRYSTALS. By H. A. MIERS, F.R.S., Professor of Mineralogy in the University 



of Oxford 



SUGAR: THE OUTLOOK IN THE COLONIES. By C. A. BARBER, M.A 



THE CELL AND SOME OF ITS CONSTITUENT STRUCTURES. By J. BRETLAND 

 FARMER, M.A., Professor of Botany in the Royal College of Science, London 



SELECTION IN MAN. By JOHN BEDDOE, F.R.S 



THE GLOSSOPTERIS FLORA. By A. C. SEWARD, M.A., Lecturer on Botany in the 

 University of Cambridge 



CONDENSATION AND CRITICAL PHENOMENA. By J. P. KUENEN, Ph.D., Professor 

 of Physics in University College, Dundee 



THE ORIGIN OF LAKES. By J. E. MARR, F.R.S., Fellow of St. John's College, Cambridge 



THE CAUSES OF VARIATION. By H. M. VERNON, M.A., M.B., Merton College, 

 Oxford 



APPENDIX— NOTICES OF BOOKS 



119 

 129 



141 

 167 



178 



202 

 218 



229 



VII 



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