Information concerning grant support of research should appear in a separate Acknowledgements section at the end of the paper, not in a footnote. Acknowledgements of the assistance of colleagues or similar notes of appreciation also properly belong in an Acknowledgements section, not in footnotes. Type each footnote at the bottom of the typescript page on which its text call-out appears. Footnotes within a table should be indicated by the same symbols listed above. Reinitialize symbol sequence within tables.
Type footnotes to a table directly beneath the table.
All figures should be numbered with consecutive arabic numbers, have descriptive captions, and be mentioned in the text. Keep figures separate from the text, but indicate an approximate position for each in the margin. Figures submitted must be of a high standard for direct reproduction. Photographs intended for halftone reproduction must be good glossy original prints, of maximum contrast. Redrawing or retouching of unusable figures will be charged to authors.