REVIEWS

Books reviewed in this article:
Developmental Biology of Physarum. By H. W. S auer
Climatic Change in Later Prehistory . Ed. by A. H arding
Climate from Tree-rings. Ed. by M. K. H ughes , P. M. K elly , J. R. P ilcher and V. C. L a M abche J r
Berichte des Geobotanischen Institutes der Eidg. Techn. Hochschule Stiftung Rübel , vol. 49. Ed. By Prof. E. Landolt
Plant Cell Structure and Metabolism , By J. L. H all , T. J. F lowers and R. M. R oberts
Experimental Embryology of Vascular Plants. Ed. by B. M. J ohri     

REVIEWS

Books reviewed in this article:
Thonner's Analytical Key to the Families of Flowering Plants. By R. G eesink , A. J. M. L eeuwenberg , C. E. R idsdale and J. F. V eldkamp
The Plant Cuticle. Ed. by D. F. C utler , K. L. A lvin and C. E. P rice
Introduction to Ecological Biochemistry . By J. B. H arborne
Vegetation Mitteleuropas mit den Alpen. By H einz E llenberg
Chloroplasts and Mitochondria. By M. T ribe and P. W hittaker
The Physiology and Biochemistry of Drought Resistance in Plants. Ed. by L. G. P aleg and D. A spinall     

REVIEWS

Book reviewed in this article:
AAAS Atlas of Population and Environment, by Paul Harrison and Fred Pearce.     

REVIEWS

Book Reviewed in this article:
Biologische Landwirtschaft: eine Einführung in die biologisch-dynamische Wirtschaftsweise. By H. H. K oepf , D. P ettersson and W. S chaumann .
Fortschritte der Botanik , Band 35. Ed. by H. E llenberg , K. E sser , H. M erxmüller , E. S chnepf and H. Z iegler .
Biologische Landwirtschaft: eine Einführung in die biologisch-dynamische Wirtschaftsweise. By H. H. K oepf , D. P ettersson and W. S chaumann .
Annual Review of Plant Physiology. Ed. by W. R. B riggs .     

REVIEWS

Book reviewed in this article:
The Cell Cycle in Development and Differentiation . Ed. by M. B alls and F. S. B illett .
Lehrbuch der Pflanzenphysiologie . By E ike L ibbert .
Flora Aegaea. By K. H. fil. RECHINGER.
Evolution in Plants. Ed. by G. VIDA.
Past and Present Vegetation in the Isle of Skye. A Palaeoecological Study. By H. J. B. BIRKS.     

REVIEWS

B ehavioral B iology of K iller W hales . Barbara C. Kirkevold and Joan S. Lockard, eds.
A rctic W halers , I cy S eas . N arratives of the D avis S trait W hale F ishery . W. Gillies Ross.
B ibliographie Ü ber W al -B ibliographie . C etacea . B ibliography on W hale -B ibliographies . Franz W. Bekierz.
R ight W hales : P ast and P resent S tatus . P roceedings of the W orkshop on the S tatus of R ight W hales . Robert L. Brownell, Jr., Peter B. Best and John H. Prescott (eds.).
O rdering the O ceans . Clyde Sanger.     

REVIEWS

Book reviewed in this article:
The Shape of Things that Come.: Sexual Selection and Animal Genitalia .—William G. Eberhard.
Die Art in Raum und Zeit: Das Artkonzept in der Biologie und Palaontologie .—Rainer Willmann     

REVIEWS

Aquatic Phycomycetes ( exclusive of the Saprolegniaceae and Pythium ). By F rederick K. S parrow , Jr.
The Permeability of Natural Membranes. By H. D avson and J. F. D anielli .
Die Ostgrenze Fennoskandiens in pflanzengeographischer Beziehiwg. By A arno K alela .
A Hand-book of Plant-Tissues Culture. By P. R. W hite .
Ecological Crop Geography. By K arl H. W. K lages .
An Introduction to Plant Physiology. By W. O. J ames .     

REVIEWS

Book reviewed in this article:
Compendia di Entomologia applicata (agraria: forestale: medica: veterinaria). Vol. 1: Part 2a. Pp. 449–974. By F. Silvestri.
Textbook of General Horticulture. By J. C. Schilletter and H. W. Richey.
Plant Physiology. By Meirion Thomas.     

REVIEWS

Handbuch der Pflanzenkrankheiten. Herausgegeben von Prof. Dr O. A ppel .
Third International Congress of Comparative Pathology, Athens , 1936. Reports , vol. I, part 2. Section of Plant Pathology.
The Genus Septobasidium. By J ohn N. C ouch .
Soilless Growth of Plants. By C arleton E llis and M iller W. S waney .
Plant Growth Substances. By H ugh N icol .
Common British Grasses and Legumes. By J. O. T homas and L. J. D avies .
Plant Ecology. By J. E. W eaver and F. E. C lements .
Forest Bibliography to 31st December 1933. Compiled and published by the Department of Forestry, University of Oxford.
Textbook of Dendrology. By W. M. H arlow and E. S. H abrar .
Cryptogamic Botany. By G ilbert M. S mith . Vol. I: Algae and Fungi.
Evolution. Essays on Aspects of Evolutionary Biology presented to Prof. E. S. Goodrich on his Seventieth Birthday. Edited by G. R. de B eer .
Heredity. By A. F ranklin S hull .     

REVIEWS

Wood Pulp. By J ulius G rant .
Manual for the Determination of Seed-Borne Diseases. By L. C. D oyer .
Fungi of India. Supplement I. By B. B. M undkur .
The Vegetables of New York. Vol. I. By U. P. H edrick .
Cotton: History, Species, Varieties, Morphology, Breeding, Culture, Diseases, Marketing, and Uses. By H. B. B rown .
The Longevity of Plants. By H. M olisch . Translated into English by E. H. Fulling.
Plant Physiology. By N. A. M aximov . Edited by R. B. H abvey and A. E. M urneek .
Science in Agriculture. By J. W. P aterson .
Report on Agricultural Research in Great Britain: a Survey of its Scope, Administrative Structure and Finance, and of the Methods of making its Results known to Farmers, with Proposals for Future Development.
An Introduction to Botany. By A. W. H aupt .
Form and Causality in Early Development. By A. M. D alcq .     

REVIEWS

Imperial Botanical Conference. Report of Proceedings . Edited by F. T. B rooks .
Laboratory Outlines in Plant Pathology . By H. H. W hetzel , L. R. H esler , C. T. G regory and W. H. R ankin .
British Weeds. Their Identification and Control . By R. M orse and R. P almer .
Organic Adaptation to Environment . Edited by RI. R. T horpe . Yale University Press, 1924. 18 s . net.
Statistical Methods for Research Workers . By R. A. F isher . Pp. 239, with six tables. Published by Oliver and Boyd, 1925. 15 s . net.     

REVIEWS

British Economic Grasses, Their Identification by the Leaf Anatomy. By S ydney B urr , M. S c . and D orothy M. T urner , B.S c
Elements of Botany. By R. M. H olman and W. W. R obbins
An Index to the Genera and Species of the Diatomaceae and their Synonyms, 1816–1932. By F rederick W m . M ills
The Methods of Cellulose Chemistry. By charles D oree
Recent Advances in the Study of Plant Viruses. By K enneth M. S mith     

REVIEWS

Books Review in this article:
Scolt Head Island. Edited by J. A. S teers .
Une Relique de la Sapinière Méditerranéenne, le Mont Babor Monographic de ľAbies numidica Lann. Étude de Sylviculture, de Dendrologie et ďEntomologie forestière. A. B arbey .
A Textbook of General Botany for Colleges and Universities. 3rd edn. By R ichard M. H olman and W ilfrid W. R obbins .
A Laboratory Guide for a Course in General Botany. By L ee B onar , R ichard M. H olman and L ucille R oush .
Identification of the Commercial Timbers of the United States By H. P. B rown and A. J. P anshin .
Commercial Fertilisers; Their Sources and Use. By G. H. C ollings .
Commercial Flower Forcing. By A. L aurie and L. C. C hadwick .
An Introduction to Plant Biochemistry. By C. C. S teele .     

REVIEWS

Book reviewed in this article:
The Biological Relations of Optically Isomeric Substances. By A rthur R. C ushny
Enzynzes: Properties, Distribution, Methods and Applications. By S elman A. W aksman and W ilburt C. D avison
The Composition and Distribution of the Protozoan Fauna of the Soil. By H. S andon
Hydrogen Ion Concentration. Its Significance in the Biological Sciences and Methods for its Determination. Volume 1. Principles of the Theory. By L eonar M ichaelis     

REVIEWS

Book reviewed in this article:
Histological Technique. H. M. C arleton and R. A. B. D rury
Radioisotopes in Scientific Research. Vol. iv. Research with Isotopes in Plant Biology and Some General Problems. R. C. Extermann.
Chemical Aspects of Ecology in Relation to Agriculture. H ubert M artin .
Methods of Testing Chemicals on Insects. H. H. S hepard .
Beneficial Insects. B. D. M oreton .
The Grafter's Handbook (2nd edition). R. J. G arner .
Common Names of British Insect and other Pests. Compiled by I. T homas and H. W. J anson .     

REVIEWS

Organization and Evolution in Plants . By C. W. W ardlaw
Spring Wildflowers of the San Francisco Bay Region . By H elen K. S harsmith
The Mineral Nutrition of the Rice Plant
Nutritional Values in Crops and Plants . By W erner S chuphan
The Identification of Flowering Plant Families . By P. H. D avis and J. C ullen
Morphologic Encyclopedia of Palynology; An International Collection of Definitions and Illustrations of Spores and Pollen . By G erhard O. W. K remp
Biological Statistics: An Introduction . By S. C. P earce
The Evolution of Biology . By M. J. S irks and C onway Z irkle     

REVIEWS

The Chemical Activities of Bacteria. By E. F. G ale , B.A., Ph.D.
Heredity and Variation in Micro-organisms. Cold Spring Harbor Symposia on Quantitative Biology.
The Royal Botanical Expedition to New Spain. By H erbert W illiam R ickett .
The Living Plant. By I. V. N ewman .
Hormones and Horticulture. The use of special chemicals in the control of plant growth. By G eorge S. A very and E lizabeth B indloss J ohnson , with the collaboration of R uth M. A ddoms and B etty F. T homson .
Plant Physiology. By M eirion T homas .
The Genetics of Garden Plants. By M. B. C rane and W. J. C. L awrence , with a foreword by S ir D aniel H all .
Plant Viruses. By K enneth M. S mith , F.R.S.     

REVIEWS

The genus Crepis , Parts 1 and 2. By E rnest B rown B abcock .
The Nature and Prevention of the Cereal Rusts as exemplified in the Leaf Rust of Wheat. By K. S tarr C hester , Ph.D.
Den Skogliga Rasforskningen och Praktiken. By B erth . L indquist .
Die Goldhafenoiese ( Trisetetum flavescentis ) der Schweis. Eine soziologisch-ökologische Studie. By F ranz M arschall .
North American Species of Mycena. By A lexander H. S mith .