Warren Ackerman to [Frederick] T. Frelinghuysen, May 19, 1884, copy Washington Aqueduct Tables, July 1881 Washington Aqueduct, Flow of Water for different levels, undated Washington Aqueduct: Discharge of Conduit between the two reservoirs..., March 3, 1882 Washington Aqueduct: Flow of Water in Conduit from Gt Falls to the Distributing Reservoir, February 25, 1882 Washington Aqueduct: Flow of Water in Conduit, undated Washington Aqueduct: Formula for calculating the flow of waterÂ…, May 26, 1881 Washington Gas Light Co. to Thomas Lincoln Casey, October 16, 1884 Washington Market Company vs. The Comissioners, January 1879 Washington Mont, undated [July 18, 1890] Washington Monument - Drawing of Monument, 1844 Washington Monument Levels, August 7, 1891 Washington's Birthplace, Estimate for Wooden Pile Wharf, undated [1882-1884] Water taken from the distributing reservoir, June 27 and June 28, 1881 Watkins & Lewis, December 1890 Webb C. Hayes to Thomas Lincoln Casey, April 1, 1878, telegram Webb C. Hayes to Thomas Lincoln Casey, August 5, 1877 Weight certificate, Washington Monument Drum, July 22, 1850 Weight certificate, Washington Monument Shaft, July 22, 1850 Weight of Iron Columns in Monument, undated West End Hotel, undated [1885] Western Presbyterian Church to Thomas Lincoln Casey, April 13, 1879 White & Bro. to Thomas Lincoln Casey, December 30, 1869 (1) White & Bro. to Thomas Lincoln Casey, December 30, 1869 (2) [Alice W. Babcock] to Thomas Lincoln Casey, March 30, 1883 [Alice W.] Babcock to Thomas Lincoln Casey, April 28, 1883 [Alonzo] Bell to Thomas Lincoln Casey, June 13, 1878 [Amos] Stickney to Thomas Lincoln Casey, March 31, 1890 [Appropriation] Of $175,000 for East Wing of new State, War & Navy Dept Building, November 26, 1877 [Belinda] O. Wilbour to Thomas Lincoln Casey, Novbember 25, 1891 [Belinda] O. Wilbour to Thomas Lincoln Casey, Novbember 30, 1891 [Belinda] O. Wilbour to Thomas Lincoln Casey, November 18, 1891 (1) [Belinda] O. Wilbour to Thomas Lincoln Casey, November 18, 1891 (2) [Benjamin] D. Greene to Thomas Lincoln Casey, March 17, 1869 [Benson] S. Lessing to Thomas Lincoln Casey, June 20, 1883 [Bernard R. Green] to Messrs. Barnes & Atchison, September 18, 1889 [Bernard R. ] Green to Thomas Lincoln Casey, September 6, 1888 [Bernard R.] Green to Edward Pearce Casey, December 12, 1892 [Bernard R.] Green to Thomas Lincoln Casey, August 1, 1887 [Bernard R.] Green to Thomas Lincoln Casey, August 10, 1890 [Bernard R.] Green to Thomas Lincoln Casey, August 10, 1891 [Bernard R.] Green to Thomas Lincoln Casey, August 12, 1890 [Bernard R.] Green to Thomas Lincoln Casey, August 12, 1892 [Bernard R.] Green to Thomas Lincoln Casey, August 13, 1891 [Bernard R.] Green to Thomas Lincoln Casey, August 13, 1892 [Bernard R.] Green to Thomas Lincoln Casey, August 14, 1890 [Bernard R.] Green to Thomas Lincoln Casey, August 14, 1891 [Bernard R.] Green to Thomas Lincoln Casey, August 15, 1890 [Bernard R.] Green to Thomas Lincoln Casey, August 18, 1890 [Bernard R.] Green to Thomas Lincoln Casey, August 18, 1891