64 
MR. LLOYD’S ACCOUNT OF LEVELLINGS 
Topographical and Geographical Notices. 
In the map which accompanies this memoir, the coast line on both sides the 
Isthmus is taken from the best Spanish authorities, including some very recent 
corrections ; the interior is wholly from my own observations. 
The district which extends from Panama along the old road to Porto Veto, 
as far as its meeting with the river Chagres, and for three to five miles on 
either side, is from a survey made by my companion Captain Falmarc and 
myself, whilst levelling through this part of the country, in the operations 
already described. The angles and bearings were taken with a 10-inch 
theodolite by Carey, with a needle as exact as could be provided for an 
instrument of that size. On a separate plan (in MSS. deposited in the 
Society’s library,) are marked the stations of the survey, and the intersection 
of the bearings taken from them. The principal stations are as follows: — 
The Cerros or Mountains of Ancon, Caledonia, Vidrio, Lirio, Algarobo, 
Pelado, Largo, Gordo, San Sonati, Alto, de Las Lajas, Maria Henrique, 
Grenadilla, &c. 
From these stations, the surrounding country was sketched at once on the 
rough map : the same mode was continued from the point where the levellings 
intersected the river Chagres to the mouth of the river, including as much of 
the surrounding country as could be laid down by intersecting bearings, taken 
on either side the river. 
The country west of the road from Cruces to Panama, including a few miles 
of the coast by Arayjan and Chorrera, was traversed in various directions with 
a compass, every accessible eminence was ascended, and views taken of the 
country. 
The country between the northern banks of the river Chagres and the North 
Sea was examined and sketched in an excursion in which I ascended the river 
Gatun, with a boat compass, and crossed from thence on foot by the gold 
mines of Santa Rita, (where is gained a fine view of the northern coast to La 
Ensenada de las Minas,) and thence to the sea beach : from this point I 
pursued the coast line to Porto Velo, and rccrossed the Isthmus to Panamfi on 
foot, in the route marked in the map, which is the old and only road from Porto 
Velo to Panamd, taking careful bearings from eminences over which I passed, 
