11. Keuka Lake survey map Collection: Images from the Rare Book and Manuscript Collections Location: Keuka Lake, New York, United States Date: 1888 Format: Image Creator: Cornell University, College of Engineering
12. Keuka Lake survey map Collection: Images from the Rare Book and Manuscript Collections Location: Keuka Lake, New York, United States Date: 1888 Format: Image Creator: Cornell University, College of Engineering
13. Keuka Lake survey map Collection: Images from the Rare Book and Manuscript Collections Location: Keuka Lake, New York, United States Date: 1888 Format: Image Creator: Cornell University, College of Engineering
14. Keuka Lake survey map Collection: Images from the Rare Book and Manuscript Collections Location: Keuka Lake, New York, United States Date: 1888 Format: Image Creator: Cornell University, College of Engineering
15. Keuka Lake survey map Collection: Images from the Rare Book and Manuscript Collections Location: Keuka Lake, New York, United States Date: 1888 Format: Image Creator: Cornell University, College of Engineering
16. Levelling staff illustration, page 79 Collection: Images from the Rare Book and Manuscript Collections Date: 1904 Format: Image Creator: Usill, George William
17. Dumpy level illustration, page 71 Collection: Images from the Rare Book and Manuscript Collections Date: 1904 Format: Image Creator: Usill, George William
18. Surveying manual: a manual of field and office methods for the use of students in surveying Creator: Pence, William D. Collection: Core Historical Literature of Agriculture Publisher: McGraw-Hill Book Co., Publication Place: New York : Date: 1932 Format: Book
