Shocked by the brutal killing of innocent victims gathered at religious services to commemorate the passing of our blessed Saviour on Good Friday, the Catholics of New York join your noble protest against this outrage of the sanctuary on such a day and at such an hour and, expressing their sympathy to the bereaved relatives of the dead and injured, pledge their unfaltering allegiance in support of the common cause that unites our two great republics. May God bless the brave officers and men of the allied armies in their splendid defense of liberty and justice! Trench artillery are Stokes guns and other mortars hurling aerial torpedoes containing great quantities of high explosives. These have curved trajectories and are effective not only against trenches but also against deep dugouts, wire entanglements and listening posts. One of the most important details of modern warfare is that of communication or liaison on the battlefield. This is accomplished by runners recruited from the trenches, by dogs, pigeons, telephone, radio, signalling lamps, rockets, but above all by airplanes using radio. These communications between air and earth are of course not as exact nor as general by night as they are by day, but even at night the airplane plays its important part in liaison. As has been heretofore stated, the airplane considered in all its developments, is the newest and most important of factors in modern warfare. It photographs the enemy positions, it detects concentrations and other movements of the enemy, it makes surprise impossible, it is a deadly engine of destruction when used in spraying machine-gun fire upon troops in the open. As a bombing device, it surpasses the best and most accurate artillery. TRANSCRIBER’S NOTES: Italicized text is surrounded by underscores: _italics_. Obvious typographical errors have been corrected. Inconsistencies in hyphenation have been standardized. Archaic or variant spelling has been retained. New original cover art included with this eBook is granted to the public domain.