54 SCIENTIFIC CATALOGUE, 



candour, and in a clear and interesting manner. In a long intro- 

 duction to this Edition, in the form of a dialogue, Professor Maurice 

 justifies some of his own peculiar views, and touches upon some of 

 the most important topics of the time. 



Murphy. HABIT AND INTELLIGENCE, in Connection 

 with the Laws of Matter and Force : A Series of Scientific Essays. 

 By JOSEPH JOHN MURPHY. Two Vols. 8vo. i6s. 



The author's chief purpose in this ivork has been to state and to dis- 

 cuss what he regards as the special and characteristic principles of 

 life. The most important part of the work treats of those vital 

 principles which belong to the inner domain of life itself, as dis- 

 tinguished from the principles which belong to the border-land 

 where life comes into contact with inorganic \ matter and force. In 

 the inner domain of life we find two principles, which are, the 

 author believes, coextensive with life and peculiar to it : these are 

 Habit and Intelligence. He has made as full a statement as 

 possible of the laws under which habits form, disappear, alter under 

 altered circumstances, and vary spontaneously. He discusses that 

 most important of all questions, whether intelligence is an ultimate 

 fact, incapable of being resolved into any other, or only a resultant 

 from the laws of habit. The latter part of the first volume is 

 occupied with the discussion of the question of the Origin of Species. 

 The first part of the second volume is occupied with an inquiry 

 into the process of mental growth and development, and the nature 

 of mental intelligence. In the chapter that follows, the author dis- 

 cusses the science of history, and the three concluding chapters 

 contain some ideas on the classification, the history, and the logic, of 

 the sciences. The author's aim has been to make the subjects treated 

 of intelligible to any ordinary intelligent man. " We are pleased 

 to listen," says the Saturday Review, "to a writer who has so firm 

 a foothold upon the ground within the scope of his immediate 

 survey, and who can enunciate with so much clearness and force 

 propositions which come within his grasp.'' 1 



Thring (E., M. A.) THOUGHTS ON LIFE-SCIENCE. 

 By EDWARD THRING, M.A. (Benjamin Place), Head Master of 

 Uppinghara School. New Edition, enlarged and revised. 

 Crown Svo. Js. 6</. 



In this volume arc discussed in a familiar manner some of the most 

 interesting problems between Science and Religion, Reason and 



