Skptembek 28, 1917] 



SCIENCE 



315 



the first time on Bibes stems. Three natural 

 stem infections were observed on a plant of 

 Bibes hirtellum Michx. {G-rossularia hirtella 

 (Mickx.) Spach) growing in a pine woodlot at 

 Kittery Point, Maine. In this same woodlot 

 two other isolated plants of the same species, 

 inoculated with seciospores by applying the 

 moistened seciospores to the imwounded green 

 stems, developed respectively one and seven- 

 teen stem infections. Of the seventeen infec- 

 tions some were very evidently natural in- 

 fections since they occurred at points on the 

 stems where no seciospores had been applied. 



TJredinia were produced on some of the stem 

 infections from the middle of June until Au- 

 gust 20. The urediniospores which were 

 formed in these sori were apparently normal in 

 every way. In the case of the other stem in- 

 fections, where no uredinia appeared, study of 

 sectioned material showed an abundance of 

 mycelium and numerous well-formed internal 

 uredinia in the cortex. 



The discovery of sporulating uredinia on 

 Bibes stems complicates the already difficult 

 problem of detecting the disease on Bihes. In 

 view of the observations recorded above, it 

 must be concluded that no Bibes from infected 

 regions can be declared absolutely free from 

 the rust even when completely defoliated. 

 Moreover, the presence of the mycelium and 

 internal uredinia in the stem tissue is strong 

 evidence that the disease does in some cases 

 winter over on Bibes. 



G. B. Posey, 

 G. P. Gravatt, 

 r. h. colley 



Office of Investigations in 

 Forest Pathology, 

 Washington, D. C. 



SCIENTIFIC BOOKS 



Dioptrographic Tracings in Three Normce of 

 Ninety Australian Aboriginal Crania. By 

 Drs. Richard J. A. Berry and A. W. D. 

 Robertson. Transactions of the Royal So- 

 ciety of Victoria, Vol. VI., 1914. 

 The volume at hand contains 270 " life-size " 

 tracings of crania of Australian natives. The 

 number of skulls dealt with is ninety, each 



one being represented uniformly from the 

 front, side and top. The publication follows 

 one of a similar nature in which tracings were 

 given of 52 Tasmanian skulls, by the same 

 authors, and reviewed by the writer in Science 

 of December 16, 1910. 



As to derivations, the skulls utilized with 

 six exceptions are all from the southeast part 

 of Australia, i. e., from the region south of 

 the Murray River ; the six exceptions are from 

 Queensland. 



The authors accompany the publication with 

 the statement: 



We are solely desirous of making available to 

 our scientific colleagues elsewhere, material of a 

 valuable character, and which is otherwise inacces- 

 sible, and which runs the further risk of being lost 

 in the process of time unless so collected. We do 

 not desire to impose our own deductions derived 

 from a study of this material upon those who may 

 hold different opinions from ourselves, and hence 

 we do not incorporate here, nor did we do so with 

 the Tasmanian tracings, the result of our own ob- 

 servations on highly debatable questions, with the 

 material itself. The conclusions which we our- 

 selves drew from the Tasmanian material have 

 been published in the Proceedings of the Royal 

 Society of Edinburgh, Volume 31, 1910, and simi- 

 larly the conclusions which it is our intention to 

 deduce from the present material will be made 

 available elsewhere, and in due course. Thus those 

 who desire to make use of the present material for 

 other purposes will have a free hand both now and 

 for the future. 



As in the case of the tracings of the Tas- 

 manian crania, anthropologists are thankful 

 to Drs. Berry and Robertson for their pains- 

 taking work; but as the Tasmanian volume so 

 the one at hand presents certain serious defi- 

 ciencies which are badly felt and which can 

 scarcely be compensated for by any subsequent 

 publication on the series. 



In the first place there is no identification 

 and subdivision of the specimens according to 

 sex. They are evidently all of adults, yet 

 even this is not certain. But the most serious 

 deficiency is the omission of all measurements. 

 An illustration without at least two or three 

 of the principal measurements does not convey, 

 a full measure of confidence. It is probable 



