_Spelling of "Britannicus"_ (Vol. iii., p. 275.).--If R. W. C. will turn
to Akerman's _Coins of the Romans relating to Britain_, he will find, at
p. 36., the description of a brass medallion of Commodus having on the
reverse a legend commencing "BRITTANIA P. M. TR.," &c.
The author observes:
"The spelling of Britannia is worthy of observation. Dr. Charles
Grotefend thinks it is from the Greek, [Greek: Brettania]."
And in a Note to this adds:
"That in Horace and Propertius, the first syllable of Britannia is
short, but in Lucretius, on the contrary, it is long."
I would further observe, that the same mode of spelling "Britannia,"
with two _t_'s, obtains on the coins of Severus, Caracalla, and Geta.