204 THE AMERICAN MONTHLY [June 



ture of the book, and althoug-h perhaps in a few caseS 

 somewhat diagramatic, it must be conceded that for the 

 most part they show extremely well the principal features 

 visible in successfully stained histological specimens. 



Browning's Paracelsus and other Essays. — By J. D. 

 Buck. Robert Clarke Co., Cincinnati. 12mo., pp. 101, 1897. 



This little pocket volume containing- four short essays 

 is suitable to take along these summer Sundays when 

 g-oing" into the woods or fields alone hoping- to feel the 

 touch of Nature. To read of Pai'acelsus, of Genius, of the 

 Music of the Spheres, or of Idols and Ideals while lying- on 

 the grass amid the frag-rance of flowers or the hum of 

 insects will help to a g-lympse of what most men and 

 women never see and do not know to exist — something- 

 non-material within, about and around the material form. 



I well remember my first experience of the "Music of 

 the Spheres" in Switzerland in 1895. Only he who has 

 heard it, however, will treat this essay as other than 

 imaginative. He who wishes with sufficient earnestness 

 to sense it can perhaps g-et assistance from this book. 



The azure-blue cover and the g-ilt top make Dr. Buck's 

 book a neat little present. The price is probably not over 

 fifty cents. 



Microscopic Researches on the Formative Property of 

 Glycog-en. Part I., Physiolog-ical. By Charles Creig-hton, 

 M. D. Royal 8vo, pp. viii. — 152. (London: Adam and 

 Charles Black. 1896.) Price 7—6 net. 



Glycogen is that substance in the animal body which 

 corresponds very closely with the starch of plants and its 

 appearance in the cells of different tissues during- devel- 

 opment. The book is illustrated by five well-executed 

 colored plates. Chapter I is an Historical Introduction ; 

 II treats of Methods and Material — viz.. Microscopic 

 Method, method of using- iodine, preservation of sections, 

 color of the iodide of animal starch, and reaction with 

 methyl violet. The remaining- eleven chapters treat of 

 g-lycogen as found in various parts of the animal bgdy. 



