The Commander in Chief saw with pleasure and surprise this morning the great progress that has been made in forming an excellent road for the battering train through so difficult a country, and the fair prospect of the artillery shortly arriving at the destined ground. Nothing can exceed the order and indefatigability of the British sailors, and the zeal and pleasure with which they appear animated in the most laborious exertions; he has remarked this with the utmost satisfaction. He begs Captains Hervey, Kelly, and Carpenter, with the officers and men under their command, will accept his best thanks and acknowledgments of how much he owes them. When the two services thus combine and co-operate, the greatest obstacles may be surmounted, and every difficulty vanish. The Commander in Chief has given orders to the commissary that the seamen shall be amply supplied with provisions and rum. _Head Quarters, Camp at Sourier, Feb. 24, 1794._ Parole, GREAT GUN. C. S. MORTAR. Not that the Commander in Chief has any reason whatever to suspect the advanced posts and guard of the camp are not alert, but, on the contrary, their steadiness and attention give him true satisfaction: nevertheless he thinks it right to warn them, that the enemy, in their present hopeless situation, may be desperate, and attempt to insult some of the posts: more they cannot do; but the slightest advantage gained, their expiring cause may for a moment be spirited up to hold out a little longer, and cause the loss of a few brave men; this the Commander in Chief wishes to avoid, and to make the conquest of this valuable island of Martinico with the least loss possible, he being ever attentive and watchful of their preservation. He particularly desires the advanced posts will, if possible, increase their vigilance, and in case of an insult, to meet it coolly, not risking themselves by darting forward (this not being the time for such exertion), but to check their ardour, and content themselves by standing on the defensive, and repulsing the enemy, covering steadily the bringing up the battering train to their destined ground, which will very soon be completed, and the batteries ready to open powerfully upon the enemy from three points at one and the same time; which done, the Commander in Chief assures the army that he has every reason to believe they will be in possession of the enemy's last stake in a little time, and honourably put an end to their labours.