September 21, 1883.] 



SCIENCE. 



405 



it is unsafe to build wiicrc one has ever passe<l. 

 The house in I'ickons county stood on a liill 

 from wiiic'li a log-ealiin had been blown away 

 some thirty years before. I witnessed the 

 last of throe, which have passed along the same 

 track. I\'ear Hernando, Miss., three have fol- 

 lowed an unvarying line." lie suggests that 

 some places arc more favorable than others for 

 the production of these storms, which would 

 make them of a more local character than Mr. 

 Fiuley would be willing to admit. 



While Mr. Finley's work, like that of all 

 others, is capable of improvement, the writer 

 l>elieves he has done great service to this branch 

 of science, and deserves the sincere gratitude 

 of both the student of science and the resident 

 in tornado districts. In enabling him to pur- 

 sue his investigations, the signal service de- 

 serves the commendation of the scieutific and 

 general public. 



ZIEGLER'S PATHOLOGICAL ANATOMY. 



A text-hook of pathological anatomy and palhoifenexis. 

 By Kksst ZiKGLER ; translated by Donald Mc- 

 Alister. London, Macnullan, 1883. 860 p. 8°. 



Tins book is a translation, from the German, 

 of a portion of Professor Ziegler's work on 

 pathological anatomy, which appeared two 

 years ago. The work is not as yet completed 

 in German, nor does the translation contain all 

 that has yet been published, covering only the 

 ground of general pathological anatomy. 



Professor Ziegler is a j'ouug man who has 

 already gained distinction in Germany bv ids 

 original investigations in connection with tuber- 

 culosis and certain of the processes involved 

 in inflammation. 



The scope of the present work is to afford 

 to students and physicians a text-book which 

 shall give a short and concise statement of 

 what is known upon the subjects treated, in- 

 cluding the results of the most recent investi- 

 gations. 



The book opens with a section of three chap- 

 ters on malformations. This is condensed and 

 dr^- ; and further, as there are no plates to illus- 

 trate the monstrosities, the student wishing to 

 acquire a knowledge of this difficult subject will 

 do better to fall back upon the earlier mono- 

 graphs of I. G. St. IJilaire, Foerster, and 

 Ahlf.'ld. 



'J'lion follow four chapters on the pathology 

 of the blood and lymph, which, though short, 

 are very good, containing essentially what is 

 known wyion the suliject. A'eiy little space is 

 devoted to throml)osis and embolism ; but this 

 is not a neglect on Ziegler's part, as he treats 



of it in detail in that portion of the book which 

 has not yet been translated. 



The succeeding chapters on the retrograde 

 disturbances of nutrition are worthy of much 

 l)raise, giving as they do a very clear, though 

 concise, account of these changes, including 

 also the results of the latest work on coagula- 

 tion-necrosis. 



The chapter on cysts, consisting of but a 

 single page, is incomplete, and does not treat 

 with sutlicient fulness this important subject. 



The three chapters devoted to hyperplasia, 

 regeneration, and metaplasia of tissues, give a 

 good account of the somewhat meagre knowl- 

 edge on these points. 



In treating of inflammation, the author gives 

 a short historical sketch of the ideas held at 

 various times upon the conditions present in 

 this process, and then devotes considerable 

 space to the ideas now in vogue, as expressed 

 by Cohnheim, .Samuel, and others; the exu- 

 dation from the vessels, due to presumable 

 changes in the vessel-wall, now forming the 

 anatomical basis. The parenchymatous inflam- 

 mations of Virchow find no place in the cate- 

 gory, nor will Ziegler allow that the connective- 

 tissue corpuscles take any i)art in the process, 

 as advanced by Virchow, and still maintained 

 by von Recklinghausen, 



The secondary changes occurring in the 

 products of an inflammation are well treated ; 

 a point in regard to which Ziegler has himself 

 contributed some original work. 



The infective granulomata arc removed from 

 the category of tumors, and are classed with 

 the inflammations. Under this head are con- 

 sidered tubercle, syphilis, leprosy, glanders, 

 lupus, and .actinomycosis. 



The anatomy of tubercle and its develop- 

 ment are fully and well treated, and the rel.a- 

 tion of the Bacillus tuberculosis to tlie disease 

 detailed so far as the present knowledge per- 

 mits. 



Virchow's classification of tumors is adopted, 

 with the exception, as already stated, of the 

 omission of the granulation-tumors. In refer- 

 ence to the aetiology of tumors, the author 

 docs not regard Cohnheim's embryonic-foci 

 theory as sufficient to explain all cases, thou<'h 

 undoubtedly applicable to many. 



Of the increasing importance of the subject 

 of parasites in relation to disease, no better 

 ])roof is to be found than in the greater number 

 of pages devoted to this point in the newer 

 books ; and among the parasites the Schizomv- 

 cetes claim the lion's share of attention. 



The author gives C'ohn's classification of the 

 latter, together with a description of their geu- 



