200 



SCIENCE 



[N. S. Vol. XXXVni. No. 971 



The section devoted to parasitic insects and 

 otlier Arthropods opens with an account of 

 mosquitoes which covers some twenty pages 

 and contains in addition to general matter 

 much valuable information on the carriers of 

 malaria and yellow fever^ and on other mos- 

 quitoes of the Amazonian region, based on 

 original observations made by the author. 

 Following this is a similar but shorter discus- 

 sion of the gad-flies (Tabanidae), the blood- 

 sucking Muscidje, Simuliidae, Chironomidse 

 and Psychodidse. The phlebotomic members 

 of these families are spoken of by Goldi as 

 habitual (professionelle) blood-suckers and 

 hemiparasites (Halbparasiten) in distinction 

 of other wholly parasitic forms (Ganzpara- 

 siten) which remain on the host during their 

 entire life, or at least during their preparatory 

 stages. Following this is an account of the 

 more highly modified Diptera Pupipara and the 

 fleas, the latter being treated at some length. 

 The sucking lice are briefly mentioned as well 

 as bedbugs and a few other blood-sucking 

 Hemiptera. Ticks and mites follow, the mites 

 receiving by far more space in proportion to 

 their importance as disease carriers. Under 

 the heading of myiasis are described many of 

 the Diptera which develop regularly or occa- 

 sionally as internal parasites of man and other 



The third chapter on "Insects and Eelated 

 Arthropods as Carriers of Disease " deals with 

 the distribution and manner of transfer of in- 

 sect-borne diseases, as well as with the morph- 

 ology and life-cycles of a number of the causal 

 microorganisms, such as the malarial para- 

 sites, trypanosomes, filarias, etc. 



The volume is profusely illustrated by 171 

 text-figures, mainly in haK-tone, derived from 

 various sources with a smaller number of orig- 

 inal figures. All are well selected, but many 

 are inferior to those in the original works 

 from which they have been copied. Some of 

 the names applied to the insects mentioned 

 are rather antiquated; thus one sees Lucilia 

 macellaria and Musca vomitoria appearing in 

 the text in place of generic names which have 

 been used for many years. In the description 

 of Fig. 103, representing some North Ameri- 



can ticks, there is an unfortunate confusion of 

 names, where Dermacentor venustus, the vec- 

 tor of Eocky Mountain spotted tick fever, is 

 referred to as the " gefleckte Texasfieberzecke 

 des Felsengebirges " (Eocky Mountain spotted 

 Texas-fever tick). This species has, of course, 

 no connection with Texas fever of cattle. 



The text is well printed, furnished with a 

 good index, and shows only a small number of 

 typographical errors. So far as the reviewer 

 can judge, there are no serious errors of state- 

 ment, although some parts, such as those on 

 the food and anatomical characters of the 

 larvffi of Stomoxys calcitrans, are open to some 

 criticism. 



The book is one which may well be placed 

 in the hands of students as a text, and it is to 

 be hoped that its author may later see fit to en- 

 large it into a more extended treatise. 



Charles T. Brues 



BussEY Institution, 

 Hahvaed Universitt 



SCIENTIFIC JOURNALS AND ABTICLES 



In January, 1913, The American Mathe- 

 matical Monthly passed into the control of an 

 editorial board consisting of representatives 

 of twelve supporting universities and colleges 

 in the middle west, together with B. F. Finkel, 

 founder of the Monthly and editor since its 

 inception in 1894. 



It is the editorial policy of this journal to 

 appeal especially to teachers of mathematics in 

 the collegiate and advanced secondary fields, 

 not only for the purpose of directing attention 

 to questions of improvement in teaching in 

 these fields, but also to foster the development 

 of the scientific spirit among large numbers 

 who are not now reached by the more technical 

 journals. 



A selection from the Tables of Contents of 

 the first six numbers includes articles on — 



The History of Mathematics, such as the 



following : 

 "History of the Exponential and Logarithmic 



Concepts," by Professor Florian Cajori, of 



Colorado College. 

 "The Foundation Period in the History of 



I 



