I wish the deficiencies outside the fort could be remedied as well as those within it. The principal defect is that the moat serves as yet very little as a safeguard, and it seems as if there is no hope of its being possible to dig it sufficiently deep, considering that experiments have been made with large numbers of labourers and yet the work has advanced but little. When His Excellency the Honourable the Commissioner van Mydregt was in Jaffnapatam in 1690, he had this work continued for four or five weeks by a large number of people, but he had to give it up, and left no instructions as far as is known. The chief difficulty is the very hard and large rocks enclosed in the coral stone, which cannot be broken by any instrument and have to be blasted. This could be successfully done in the upper part, but lower down beneath the water level the gunpowder cannot be made to take fire. As this is such an important work, I think orders should be obtained from Batavia to carry on this work during the dry season when the water is lowest; because at that time also the people are not engaged in the cultivation of fields, so that a large number of labourers could be obtained. The blasting of the rocks was not undertaken at first for fear of damage to the fortifications, but as the moat has been dug at a distance of 10 roods from the wall, it may be 6 or 7 roods wide and a space would yet remain of 3 or 4 roods. This, in my opinion, would be the only effectual way of completing the work, provision being made against the rushing in of the water, while a sufficient number of tools, such as shovels, spades, &c., must be kept at hand for the breaking of the coral stones. It would be well for the maintenance of the proper depth to cover both the outer and inner walls with coral stone, as otherwise this work would be perfectly useless.