It is remarkable only for the bad conduct of the British dragoons and the steadiness of the infantry.
The latter's enormous numerical superiority was neutralized by Sulla's judicious choice of ground and the steadiness of his legionaries; the Asiatics after the failure of their attack were worn down and almost annihilated.
One drawback to this form of instrument is that the two webs cannot be viewed simultaneously, and therefore the observer must rely on the steadiness of rate of the clockwork and uniformity in the conditions of refraction whilst the eye is moved from one eyepiece to the other.
Several important points were gained in the latter: the quadrantal deviation could be finally corrected for all latitudes; frictional error at the cap and pivot was reduced to a minimum, the average weight of the card being 200 grains; the long free vibrational period of the card was found to be favourable to its steadiness when the vessel was rolling.
When the Seven Days' battle began Porter's corps had to sustain alone the full weight of the Confederate attack, and though defeated in the desperately fought battle of Gaines's Mill (June 27, 1862) the steadiness of his defence was so conspicuous that he was immediately promoted major-general of volunteers and brevet origadiergeneral U.S.A. His corps, moreover, had the greatest share in the successful battles of Glendale and Malvern Hill.
The great numerical superiority of the Federals enabled Sherman to press back the Confederates without a pitched battle, but the severity of the skirmishing may be judged from the casualties of the two armies (Sherman's about 26,000 men, Johnston's over io,000), and the obstinate steadiness of Johnston by the fact that his opponent hardly progressed more than one mile a day.
The retirement was terribly costly, and but for the steadiness of Lannes the French must have been driven into the Danube, for the archduke's last effort to break down their resistance was made with the utmost fury.
In October Lee attempted a third Bull Run campaign on the same lines as the second, but Meade's steadiness foiled him, and he retired to the Rapidan again, where he in turn repulsed Meade's attempt to surprise him (Mine Run, November 26-28, 1863).
Nor must we overlook Wellington's unswerving determination to co-operate with Blucher at all costs, and his firmness on June 18; or the invincible steadiness shown by the British troops and those of the King's German Legion.
It is true that the theory of vortex rings in hydrodynamics is of a simpler type; but electric currents cannot be likened to permanent vortex rings, because their circuits can be broken and the element of cyclic steadiness on which the simplicity depends is thereby destroyed.