l2 g Gen. Roy’s Account of 
that befides the numberlefs ditches with which this finguiar 
plain is interfered, and which it was impoffible to avoid crof- 
fing* there is almoft in every field a watering pond for the 
cattle, many of them of confiderable depth. Neverthelefs, fo 
very attentive had Mr. Fiddes been to the accuracy of his 
furvey, that he was enabled, after feveral trials of other di- 
rections, to run a line from High Nook on Dymchurch Sea- 
wall, upon the fmall fpire of Ruckinge Church, of the length 
of nearly fix miles, without interfering with any one of the 
watering ponds, or meeting with any other local obftruetion of 
confequence. So very minute was he in his remarks, and fo 
accurate in the fituation of particular trees, that in tracing his 
line with the telefcope, he managed fo as to avoid them all, a 
few infignificant bufhes excepted ; which I believe to be an 
Inflance of exa&nefs fcarcely to be equalled. 
Art. VI. Pipes funk in the ground . 
Permiflion having previoufly been obtained from the pro- 
prietors of the foil, pipes were funk into the ground at the 
two extremities of the bafe, and alfo one on Allington Knoll, 
which laft point with Lydd Church * form that fide of one 
of the great triangles depending on the bafe on Hounflow 
* It will be perceived, that feveral of the names of places differ m their 
orthography, from that whereby they were expreffed in the plan of the intended 
triangles given in the Paper of 1787. This has been done, on procuring better 
information in that refped than had, formerly been obtained. Mr. Cobb, of 
Lydd, an ingenious gentleman, well acquainted with Romney Marfti, was fo 
obliging as to p.refent me with a manufcript map of that finguiar plain, com- 
piled by himfelf from aftual furveys, where the names and boundaries of the 
waterings , and many other curious particulars, are very diftinitly expelled. 
Our plan of the bafe has therefore derived advantage by adhering to iuch 
refpe^table authority. Heath 
