Cells. Size of Italian and common. 
D (May 10, 1860) Measured a today some Italian worker
comb taken from the original gum in which Mr. Parsons brought over the
Italian bees. Several very careful measurements gave about 19 cells to
four inches. The same number of measurements gave 20 of the common
or black bee. The bees must therefore become larger. Important to breed our
queen bees in Italian combs. 
May 28th 1861. For summer on the frame underside of cover nail tacks, brads,
small staples, so that cover will not set close on ledge, but leave 1/4 inch under
to prevent hurting bees and to give more air. If cover is made [added: with] about 1/2 inch [crossed out: illegible]
 (1/4 inch on every side) a staple may be put in to prevent bees from being crushed. 