摘要:

SYNOPSISSome examples of the variety found in the micro‐crystalline form of the scale obtained by boiling natural waters. Preparation of solutions for experimental investigations. Types of micro‐crystals of calcium carbonate and comparison with crystals of calcite and aragonite, and with the crystals of ice found in snow. Influence of temperature and of dissolved carbon dioxide. Modifications resulting from the presence of small traces of silicates, chlorides and sulphates in wa

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1956.tb00436.x

出版商:Blackwell Publishing Ltd    

年代:1956

数据来源: WILEY

摘要:

SYNOPSISA review of the electron microscopy of diatom wall structure is given. The structure of the areolæ and its variations are described. The diatoms are divided into nine groups based on their wall structure. The structures of the mucilage pores, spines and the raphe are described from the electron microscopic studies.As many as 80 genera and nearly 300 species have been investigated by different workers. A full list of these is given and the facts known about them analysed.The writer supports the view that structural details revealed by electron microscopy have a definite place in taxonomy

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1956.tb00437.x

出版商:Blackwell Publishing Ltd    

年代:1956

数据来源: WILEY

摘要:

SYNOPSISThe species of the genusMallomonas, classed amongst the algæ, are small cells covered with characteristic silica scales and bristles. These are of considerable importance in the classification of the species, but only the coarser details are visible under the optical microscope. A direct electron microscope study yields much information about the fine markings on the scales, but the use of carbon replicas produces clearer, more easily interpreted micrographs, and permits the examination of the exterior of a complete organism.The scales and bristles of nine species, three of which are new, are described, and some variations in the markings within a single species are illustrated

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1956.tb00438.x

出版商:Blackwell Publishing Ltd    

年代:1956

数据来源: WILEY

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1956.tb00439.x

出版商:Blackwell Publishing Ltd    

年代:1956

数据来源: WILEY

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1956.tb00440.x

出版商:Blackwell Publishing Ltd    

年代:1956

数据来源: WILEY

摘要:

Book reviewed in this article:General Microbiology.—W. G. Walter and R. H. McBee. D. van Nostrand Co.The Microscopy of Animal Textile Fibres.—A. B. Wild

ISSN:0368-3974    

DOI:10.1111/j.1365-2818.1956.tb00441.x

出版商:Blackwell Publishing Ltd    

年代:1956

数据来源: WILEY