A Plan of the River Schuylkill Wherein are laid down the several Shoals with the depth of Water on each in Inches, also the Depth of the Channel in general in the beginning of August 1773, Together with the means proposed for improving the Navigation of sd River and an Estimate of the Expence. [No. 89, A] / Copied from the Original Plan of David Rittenhouse Esqr. by Robt Erskine F.R.S. 1779 ; by Robert Erskine F.R.S. Geogr. A. U.S. and Assistants.
River Schuylkill from Falls to Reading by Dd. Rittenhouse with the Depths, a.B. D a [C]ontraction of Do. 89

River Schuylkill from Falls to Reading by Dd. Rittenhouse with the Depths, a.B. D a [C]ontraction of Do. 89

1779

1 map on 8 assembled sheets : ms. ; 38 x 377 cm

Rough draughts of surveys, begun A.D. 1778 ; 089, A

Foxed, soiled, stained and creased. Mounted on cloth and cropped. In pencil on recto: "No 89". Includes index to 66 numbered features. Military topographic map. Covers the counties of Berks, Chester, Montgomery and Philadelphia, Pennsylvania, between Reading and Philadelphia. Shows river features and depths by soundings. Does not show landward features. Pen-and-ink, pencil on laid paper. Title proper and first statement of responsibility from map recto. Title number supplied by cataloger. Erskine’s title, his statement of responsibility, date, series title and series numbering from separate index sheet filed at head of series. Watermark on all sheets: "J WHATMAN" accompanied by "GR" under shield, similar to Gravell and Miller foreign watermarks nos. 301 and 751.

Scale [1:20,000] 100 Poles to an In.

(W 75⁰57ʹ--W 75⁰11ʹ/N 40⁰21ʹ--N 40⁰00ʹ)

Maps -- M30
M004503
n000157m-n000162

Landforms--Pennsylvania--Maps
Rivers--Pennsylvania--Maps

Berks County (Pa.)--History--Revolution, 1775-1783--Campaigns--Maps, Manuscript
Chester County (Pa.)--History--Revolution, 1775-1783--Campaigns--Maps, Manuscript
Montgomery County (Pa.)--History--18th century--Campaigns--Maps, Manuscript
Philadelphia (Pa.)--History--Revolution, 1775-1783--Campaigns--Maps, Manuscript
Schuylkill River (Pa.)--History--18th century--Campaigns--Maps, Manuscript

manuscript maps

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