from:
"The Illustrated Encyclopedia of Beekeeping"
Edited by Roger A. Morse, and Ted Hooper
(this particular text appears to be written by the editors)
1985

Page 79
"BEESWAX is used to build hexagonal cells with three faced bases.  Normal honeycomb is of two sizes:  worker comb has cells 1/5 inch (5mm) in diameter, and drone comb has cells 1/4 inch (6mm) across"


from:
"First Lessons IN BEEKEEPING"
By C. P. Dadant
Revised and rewritten by
M. G. Dadant AND  J. C. Dadant

Revised and Reprinted 1946
Reprinted 1947

Page 30
"The cells in which the worker bees are reared measure about five to the inch or a trifle over twenty-seven to the square inch.  The cells in which drones are reared measure four to the inch."

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