s depends (to reduce the matter to the simple algebraical
formula to which all military problems are susceptible) on the fact that if
_x_ equals the greatest efficiency of an army, and the rooted square of
stability to the _n_th rank equals the phalanx, then the rooted square of
stability to the _n_th rank equals _x_ minus the tangential curve of
velocity of mobility. This should be plain even to the amateur student of
tactics. Blending almost a military expert's appreciation of this cardinal
doctrine with his natural selfishness as a leader of cavalry, PHILIP has
given to this, the mobile arm, much of the striking power of the original
phalanx. This is now placed in the centre, its business being mainly to
force a salient in the enemy's line, the two resultant enclaves of which
can then be shattered (at their re-entrants) by the cavalry squadrons,
hurled forward on both phalanks. It should be noted, as a brilliant example
of PHILIP'S staff work, that in the Macedonian Army, for the avoidance of
confusion in the field, "phalanks" is now spelt "flanks."

To the intelligent student who has followed me thus far in these articles
it should not be necessary to explain again the terms "enclave," "salient,"
and "re-entrant." "Tactical" is a term used when one is not using the term
"strategical," and _vice versa_.

* * * * *

"In the words of Bacon, it should be 'read, marked, learned and
inwardly digested.'"--_Financial Paper_.

Our gay contemporary does not tell us whether it was before or after
completing the works usually attributed to SHAKSPEARE that BACON compiled
the Book of Common Prayer.

* * * * *

THE FLAPPER.

[Dr. ARTHUR SHADWELL, in the January _Nineteenth Century_, in his article
on "Ordeal by Fire," after denouncing idlers and loafers and shirkers,
falls foul "above all" of the young girls called flappers, "with high
heels, skirts up to their knees and blouses open to the diaphragm, painted,
powdered, self-conscious, ogling: 'Allus adallacked and dizened oot and a
'unting arter the men.'"]

Good Dr. ARTHUR SHADWELL, who lends lustre to a name
Which DRYDEN in his satires oft endeavoured to defame,
Has lately been discussing in a high-class magazine
The trials that confront us in the year Nineteen Seventeen.

He is not a smooth-tongued prophet; no, he takes a serious view;
We must make tremendous efforts if we're going to w