SCALES OF NOTATION 77

a twenty four hour day. The awkwardness of 19 o’clock and
23 o'clock, for example, is evident. For common use we pre-
fer numbers that are exprest by single figures. With the
sexidenal clock and sexidenal notation each hour would be
represented by a single figure, except the midnight hour, which,
of course, could also be represented by the single figure 0.
But the symbol 10, either visual or vocal, has not the awk-
wardness of either 19, 23, or 24.

Moreover in the 24-hour clock the interval on the face be-
tween two consecutiv hour marks would be 214 minutes, in the
sexidenal clock the interval would be 10 minutes (sexidenal).

148. Another great improvement would, it seems to me, be
that proposed by James Arthur (*) that all the world should
keep Greenwich time. Instead of having the world divided
into 24 time zones, with their many irregularities and incon-
sistencies, we would have all the world in one zone. It would
be just as easy to have breakfast in New York at twelv o’clock,
world time, as at seven o’clock, New York time.

THE CALENDAR

149. The Thirteen Months Plan. A closely related pro-
posal is that for the reform of the calendar, proposed by a
number of men, among the earliest being Daniel Arthur(2),
son of James Arthur. They suggest that New Year’s Day
be not counted among the days of the week or month. The
remaining 364 days of the ordinary year they would divide
into 13 months of 4 weeks each. For the extra month a
number of names have been suggested, among them being
Stellar (Daniel Arthur), Liberty (Liberty Calendar Association

(1) See James Arthur, L. c., p. 59. The Washington meridian conference
of 1884 recommended the use of Greenwich time for some purposes. See
the Encyclopaedia Britannica, 9th ed., Vol. 23, article Time, p. 394. See
also Vera Sanford, 1. c., p. 377.

(*) See Daniel Arthur, The Calendar Concept and its Evolution, p. 9,
reprinted, 1910, from the Jewelers' Circular- Weekly.,