APPLIED ELECTRON MICROSCOPY

Abstract
This paper is in two sections. The first includes: (i) a description of the technique of taking stereoscopic photographs with the electron microscope, (ii) an investigation of particle sizes in mine dust, and (iii) the use of electron diffraction technique in conjunction with an electron microscope. This last subject is illustrated by a study of clays and other paper-coating materials.The second section includes several applications of the Toronto instrument to botanical investigations. Examples of the usefulness of the instrument in this field are: (i) a method of photographing the cuticle of Antirrhinum majus L. var. Rosalie, (ii) a study of the wall structure of Aloe arborescens Mill. subjected to different chemical treatments, and (iii) stereoscopic views of broken flax fibres.

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