THE UNIVERSITY SERIES 



LOGIC, INDUCTIVE AND DEDUCTIVE 



By William Minto, M.A., Hon. LL.D., St. An- 

 drews, Late Professor of Logic in the LFniversity 

 of Aberdeen. With Diagrams. 385 pages. 12010, 

 $1.25 net. 



FROM THE PREFACE.— " In this little treatise two things are 

 attempted. One of them is to put the study of logical formula on a 

 historical basis. The other, which might at first appear inconsistent 

 with this, is to increase the power of Logic as a practical discipline. 

 The main purpose of this practical science, or scientific art, is con- 

 ceived to be the organization of reason against error, and error in its 

 various kinds is made the basis of the division of the subject. To carry 

 out this practical aim along with the historical one is not hopeless, 

 because throughout its long history Logic has been a practical science ; 

 and, as I have tried to show at some length in introductory chapters ^ 

 has concerned itself at different periods with the risks of error peculiar 

 to each.'* 



CHAPTERS IN MODERN BOTANY 



By Patrick Geddes, Professor of Botany, Univers- 

 ity College, Dundee. i2mo. Illustrated, $1.25 net. 



Beginning with some of the strangest forms and processes of the 

 vegetable world [Pitcher Plants], it exhibits these, not merely as a vege- 

 table menagerie, but to give, as speedily and interestingly as may be : 



<a) Some general comprehension of the processes and forms of ve^- 

 table life, and, from the very first, 



(b) Some inteUigent grasp of the experimental methods and reasoning 

 employed in their investigation. 



Other Insectiverous Plants, with their Movements and Nervous Ac- 

 tion, are discussed. The Web of Life, Relations between Plants and 

 Animals, Spring and its Studies^ Geographical Distribution, Landscapes, 

 Leaves, etc., form the subject of other chapters, and handled in a way to 

 open the general subject of systematic botany most invitingly. 



THE EARTH'S HISTORY 



An Introduction to Modern Geology. By R. D. 

 Roberts, M.A., Camb., D.Sc. Lond. With col- 

 ored Maps and Illustrations. i2mo, $1.50 net. 



A sketch of the methods and the results of geological inquiry to help 

 those who wish to take up the study in its most interesting features. The 

 purpose is to answer such questions as readily suggest themselves to the 

 stuaent, among which may he mentioned the foUowmg ; What is the nature 

 of the crust movements to which the land-areas and mountain ranges are 

 due? What was the distribution of land and water that obtained in the 

 area when each group of rocks was formed ? What was the condition of its 

 surface, and what the forms of life inhabiting it? What were the oceanic 

 conditions • the depths in different parts ; the forms of life inhabiting the 

 water ; and the nature and extent of the materials brought down by the 

 rivers that poured into the seas from the land-areas of that period ? 



