36 NATURAL SCIENCE. Jan.. 1893. 



This must suffice for a short account of the nature of Professor 

 BiitschH's investigations. I am glad to be able to say that my friend 

 Mr. E. A. Minchin has arranged with the author and publisher for the 

 production of an English translation of this work. Until the appearance 

 of this, everyone who can spare time to cope with an intricate and 

 rather perplexing German style should go to the original. Vitalism, 

 the empirical study of living organisms as living, may be the most 

 presently fertile working hypothesis. But only those of little hope 

 look for no final synthesis of the facts of Biology, Physics, and 

 Chemistry, and even now they will have much ado when they try to 

 discount Professor Biitschli's brilliant work. 



P. Chalmers Mitchell. 



