322 Intelligence and Miscellaneous Articles. 



many sections besides the coloured geological maps, is to be noticed 

 as a most useful adjunct to this liberally published Beport on the 

 geological structure and capabilities of important parts of the great 

 vState of "Wisconsin. 



The Life of Immanuel Kant. By J. H. W. Stuckenbbbg, D.D., 



late Professor in Wittenberg College, Ohio. London : Macmillan 



and Co. 1882. 

 The work before us does not answer completely to its title. Our 

 notion of a Life involves in its essence the being written chrono- 

 logically. To put every thing in its proper place with respect to 

 time may be difficult in the case of a philosopher who flourished 

 one hundred years ago and whose life was remarkably uniform ; but 

 the task so accomplished would be more interesting to the general 

 reader and more valuable to a philosopher. Tor example, at the end 

 of Chap. XI. we are landed in the " return " to Kant's philosophy, 

 while in Chap. XIII. we are led back to consider the old age and death 

 of the philosopher himself. Our author is in consequence apt to 

 fall into redundancy, a danger of which he is himself conscious ; 

 for he says at the beginning of Chap. XII., devoted to Correspond- 

 ence and* Correspondents, "Kant's letters have already been so 

 extensively used in this biography, that little more need be said of 

 them." In all other respects the workmanship of the volume 

 seems to us most praiseworthy. 



Our author in his Preface says, " If Kant's works throw light 

 on his life, it will also be found that his life aids materially in 

 understanding his works," In the thirteen following chapters he 

 aims at giving all the data which can by any possibility throw light 

 on the views of the philosopher — scientific, moral, and religious. 

 There are data given, however, which one would think cannot 

 throw much light : for example, an account given of his method of 

 retiring (p. 435), the nature of which may be inferred from the 

 following specimen: — '•' In summer one, in winter two nightcaps 

 Mere worn." 



With this book before him, the scientific man will be able to 

 appreciate the qualifications, natural and acquired, which Kant 

 brought to the task undertaken in the ' Critique of Pure Reason.' 



XXXVII. Intelligence and Miscellaneous Articles. 



CONSERVATION OF SOLAR ENERGY. 

 BY PLINY EARLE CHASE, LL.D.* 



A LL forms of solar energy are due to solar radiation. The main- 

 -£*- tenance of the energy depends on the maintenance of the 

 radiations. In investigating the relations of centripetal and centri- 

 fugal action and reaction, it seems desirable to consider the following 

 hypotheses and conclusions : — 



* Abstract of a Paper read before the American Association at Mon- 

 treal, August 25, 1882. Conmiunicated by the Author. 



