REVIEWS. 63 



to the Study of Microscopy in general, or of Mr. Cole's " Studies" 

 in particular. The subjects at present laid before us are entitled, 

 On Instruments, Reagents, Methods of Preparation, Microscopi- 

 cal Art, The Microscope^ The Human Eye and its relation to 

 Microscopical Observation, The Preparation of Animal Tissues. 

 This latter subject, as we naturally expected, from a man of such 

 practical experience, is treated in a very masterly manner. 



Two parts only of the " Popular Studies " are to hand. No. i 

 is devoted to Hebridian Gneiss, and gives, first, a description of 

 the Rock, and next. How to Prepare a Rock-Section for the 

 Microscope, and is illustrated with a fine coloured lithograph. 

 No. 2 is descriptive of the Human Scalp, the hair being minutely 

 described. This number is illustrated with a coloured plate of 

 Hor. Sec. of the human scalp injected. 



Of the " Studies in Microscopical Science," seven parts have 

 reached us, and are, as a whole, we think, quite equal to those 

 of Vol. I. The series, as was that of last year, is divided into 

 two classes, viz., Animal and Botanical, the subject of study in 

 each case up to the present being the Morphology of the Cell ; 

 the chromo-lithographs issued being Polycystina, Globigerina 

 ooze, Lon. Sec. Scale-Leaf of Fritillaria imperialis. Trans. Sec. 

 Stem of Pinus Sylvestris, Blood of Frog, and Arachnoidiscus 

 Ehrenbergii. 



The American Psychological Journal. Issued by the 

 National Association for the Protection of the Insane and Preven- 

 tion of Insanity. Vol. I., No. 3, October, 1883. {F. Blakistofiy 

 Son, and Co., Philadelphia.) 



This is a well-got-up quarterly, and appears to handle the 

 subject in a very masterly manner. 



The Science Monthly. {David Bogue and E. JV. Allen.) 

 Parts I and 2 of this new illustrated monthly are to hand. 

 The contents are, as we are led to judge from the title, of a 

 varied character, well selected, and of a particularly interesting 

 nature, and the illustrations are good. In The Museum, No. i, 

 we find a paper on Microscopy by Mr. Geo. E. Davis, and in No. 

 2 on the Verification of Microscopical Observations by Mr. A. 

 McCalla, Pres. Amer. Soc. Micro. Under the " Leaders of 

 Science," we have portraits of Sir G. B. Airy and Sir John 

 Lubbock. 



