tude, 69 deg. 59' 21" west of
Greenwich; magnetic variation, 5 deg. 57' 40" east; elevation above
sea-level, 274 feet; distance from the Atlantic, 1828 miles.

Letitia is the Peruvian frontier post on the north bank of the Amazon.
A fort, intended to command the passage of the river, was projected
but not erected at this point. It is probable that the passage of
steamers up the Amazon cannot be stopped by forts and batteries at any
point on the river below Tamshiyacu.

LORETO.

Latitude, 3 deg. 54' 20" south; longitude, 70 deg. 7' 45" west of
Greenwich; magnetic variation, 5 deg. 11' 24" east; thermometer, 78
deg.; elevation above sea-level, 286 feet; distance from the Atlantic,
1865 miles; current, 3 miles per hour; width of river, 1300 yards.

Loreto is the most eastern Peruvian town of any importance on the
Amazon. It is situated on the north or left bank of the river. Near
it resides a tribe of Indians, partly civilized, called the Ticunas.

CAMACHEROS.

Situated on the right or south bank of the river; current 2-1/4 miles
per hour; width of river, 1800 yards.

MAUCALLACTA.

Situated on the right or south bank of the river; width of river, 2500
yards.

PEBAS.

One mile from the Amazon, on the left or north bank, and one mile up
the River Ambiyacu. The current of the Amazon at Pebas is 2-1/2 miles
per hour; distance from the Atlantic, 2009 miles.

ORAM.

On south or right bank of the river; current, 2-1/2 miles per hour;
width of river, 1000 yards; depth of water, 36 feet.

IQUITOS.

Latitude, 3 deg. 44' 15" south; longitude, 73 deg. 7' 30" west of
Greenwich; magnetic variation, 5 deg. 55' east; thermometer, 78 deg.;
elevation above sea-level, 295 feet; distance from the Atlantic, 2126
miles; current, 3 miles per hour; depth of water, 36 feet.

Iquitos is on the north bank of the Amazon, at a point where the river
is divided by an island into two channels; from the town to the island
the river is 1800 yards wide, and the channel on the other side of
the island has about the same width. The Government buildings and
works are situated at this place, and it is the largest and most
important town on the Upper Amazon. It is a place of considerable
trade, and in it are established several mercantile houses which
import their goods directly from Europe and the United States by way
of Para. The anchorage is good at all times, and vessels, whilst
discharging or receiving cargo, can lay in secu