581 
LECTURES 
FOE 
N.-C.O. AND MEN OF FIELD ARTILLERY. 
BY THE LATE 
CAPTAIN G. L. W. GRIERSON, R.H.A. 
The following* rongli Notes of Lectures were found among the papers of the late 
Captain G. L. W. Grierson, R.H.A., being evidently compiled for his own use 
without a view to publication. Ilis family have most kindly offered them to the 
Committee R.A. Institution, and they gladly avail themselves of the permission to 
publish for the general benefit of the Regiment to which he was so proud to 
belong. 
Read Lord Roberts's Speech, at Gurgaon Camp of 1891. Points he ist Lecture, 
laid stress on ; examples of shrapnel fire effect he quoted. Read An 
Artillery Duel/’ by Major O'Callaghan, R.A., in “ Proceedings" 
R.A.I., and “ Shrapnel Fire/' by Major Clarke, R.E., in ditto. Shrap¬ 
nel is the projectile we must know all about, it is the projectile to win 
battles with. 
Common shell.—Useless for destroying earthworks or obstacles. On and Lecture, 
this point read extracts from “ Clery," in his remarks on Russo-Turkish 
War; bombardment of Turkish works previous to assault at Plevna; 
also Major Savage's paper, “ Fortification on the Battle-field," and 
Baker’s “ Preliminary Tactics " on this point. Diagrams of field-works 
showing how obstacles are protected from shell fire, and how the gar¬ 
rison is sheltered. 
Case shot.—Cone of dispersion and its area; most effective at 300 
yards, when it covers a front of 42 yards. Read examples of effective 
use of case—Waterloo, Worth, Salamanca. 
Shrapnel Shell.—Trajectory up to point of burst identical with 
common; what occurs on burst; cone of dispersion ; varies for dif¬ 
ferent ranges; result of rotatory motion and forward motion of shell 
on balls; formation of cone ; its pattern on ground; how balls are 
distributed .—Vide Baker's Preliminary Tactics." 
Danger zones of shrapnel at 1000, 2000, 3000, and 4000 yards.— £r a Lecture. 
Form of zones shows that fire cannot be too direct when object has 
depth, nor too oblique (or flanking) when object has frontage and little 
or no depth, i.e., column and line. Effect of flanking fire on a line ; 
effect of direct fire on a column. Percussion shrapnel; how ineffec¬ 
tive ; its effect on a broad target; on a deep target. Read remarks 
U. VOL. XX. 
