No. 1, February, 1921] TAXONOMY OF VASCULAR PLANTS 73 



478. NiKLAS, H. Die Bedeutung der Geologie fiir die land- und Forstwirtschaftliche 

 Bodenkunde. [The significance of the science of geology with relation to agricultural and 

 forest soil science.] Naturvviss. Zeitschr. Forst-u. Landw. 18:22-35. 1920. — After consider- 

 ing all cultural conditions of the soil in 434 agricultural precincts, Niklas divid* s the soils in 

 seven classes, based on heavy, intermediate, and light soils, and variety of products pro- 

 duced. The prepared chart showed a marked coincidence with the geological charts, although 

 these were not considered in preparing the soil chart. In so far as forestry is concerned, a 

 soil study is still more imperative, because of the longer period of time in which mistakes 

 must be realized. It will be necessary to make a study of the chemical and physical proper- 

 ties of the various soils of each geological formation, and to relate this study to one of the 

 principal tree species. The employment of agriculturists and foresters in the various geologi- 

 cal bureaus, whose duties would be to prepare the geological charts for practical use, is recom- 

 mended. — J. Roeser. 



479. Niklas, H. Eine landwirtschaftliche Bodeniibersichtskarte von Bayern. [An agri- 

 cultural soil survey chart for Bavaria.] Naturwiss. Zeitschr. Forst-u. Landw. 18: 62-65. 1920. 

 — As a temporary guide for constructing a soil chart for Bavaria, for forestry and agriculture, 

 the author has made use of the official cultivation statistics, which have been kept for the past 

 20 years He contends that the knowledge of the soil gained through long years by agricul- 

 turists and foresters shows itself in the choice of cultural species growing on the ground. 

 The author essentially repeats his observations of an earlier article. (See Bot. Absts. 

 7, Entry 478), appearing in the previous issue of this paper. — J. Roeser. 



480. Schuster, Matth.^us. Wie soil der Land- und Forstwirt Geologische Karten lesen? 

 [How shall the agriculturist and forester read geological charts?] Naturwiss. Zeitschr. Forst-u. 

 Landw. 18: 10-22. / fig. 1920. — The principal reason why agriculturists and foresters have 

 not reconciled themselves to geological charts is that they cannot familiarize themselves 

 with the manner of representation used. The modern charts often contain a mass of colors 

 and symbols, which are apt to confuse the user. The Bavarian charts have been prepared to 

 meet both the scientific and practical demand, and are easily legible without detailed expla- 

 nations. The author gives a detailed description of the method of preparation and the 

 methods of interpreting these charts; and by means of a short field trip over the terrain rep- 

 resented on a model chart, shows the relation existing between rock and soil and the cultural 

 use of the soil, and also explains the methods employed by the geologist to show the relations. 

 — J. Roeser. 



TAXONOMY OF VASCULAR PLANTS 



J. M. Greenman, Editor 

 E. B. Patson, Assistant Editor 



GENERAL 



481. Anonymous. [Rev. of: Blatter, Ethelbert. Flora Arabica. Part 1. Rec. Bot. 

 Surv. India 3, No. 1.] Nature J04: 609. 1920.— Includes list of thirty-eight families (Ben- 

 tham and Hooker arrangement) including vernacular names and uses, also discussion of 

 botanical regions. — 0. A. Stevens. 



482. Anonymous. [Rev. of: Gamble, J. S. Flora of the Presidency of Madras. Part 3. 

 P. 391-577. Legiiminosae—Caesalpiniodeae to Caprifoliaceae. Aldard and Son, and West 

 Newman, Ltd.: London, 1919.] Nature 105: 36. 1920. 



483. Benoist, R. Plantes recoltees par M. E. Wagner en Republique Argentine. [Plants 

 collected by M. E. Wagner in the Argentine.] Bull. Mus. Hist. Nat. [Paris] 25: 655-661. 

 1919. — Detailed notes concerning some 20 species collected in the province of Santiago include 

 information as to habitat, economic importance, common name, etc. — E. B. Payson. 



