Plate 21. 



T. W. COWAN, F. G. S., F. R. M. S. 



Editor of the '^British Bee .lunrniil.'" 



Author of "Tfte British Bee-Keeper's Ouide Book" and of "Th.e 



Honey-Bee. " 



This writer is rnentioned pages 12, 146, 195, 239, 



481, 487. 



356, 469, 479, 480, 



