Matériel organization, and its successive changes—Guns and carriages first used—Royal pattern—Madras pattern—Ammunition-carriages—Tumbrils—Horse Artillery ammunition-carriage—Elevating-screws—Ordnance in use—Siege-carriages—Howitzer and Mortar combined carriage—Gribeauval’s pattern—French caisson—Hardwicke’s pattern—Horse Artillery guns—Mountain-train carriages—Siege-carriages and ordnance—Royal pattern (block trail)—Gun and Ammunition carriages introduced. Having traced the _personnel_ of the regiment up to this point, let us take a retrospective survey and endeavour to track out the _matériel_; this cannot be satisfactorily done in the early stage; the absence of records and drawings renders it almost impossible; little more than a general idea can be given, and in this even there must be some guesswork; occasionally restoring (as the geologists say) a carriage from a few points found scattered in the reports of committees, or incidentally alluded to in other documents. During Clive’s early wars, 6–pounder guns seem to have been generally in use, mixed occasionally with howitzers and 3–pounders, and when battalion guns a few years later became the system, two 3–pounders were with most native battalions. In his organization of the army in 1765, this became the establishment, and with the European companies of artillery there were six 6–pounders and two (probably 5½ inch) howitzers: 12–pounders as field-guns were introduced later. The carriages at this time were probably of a double-cheek pattern, and from the histories of the actions, we find they were weak and often breaking down. When Colonel Pearse came into the command of the regiment, it will be recollected that he found great fault with them: “They flew to pieces with common firing in a week;” and his sweeping condemnation was probably quite just.