95 
s 
c 
2012 
23g 
West Point, New York 
s 
c 
2013 
23h 
West Point, New York 
s 
c 
2014 
23i 
West Point, New York 
s 
c 
2015 
23j 
Round Pond near West Point, New York 
s 
c 
2016 
23k 
Mud of Hudson River, West Point, New York; J.W. Bailey 
s 
c 
2017 
231 
West Point, New York 
s 
c 
2018 
23m 
West Point, New York; April 11, 18^9 
s 
c 
2019 
23n 
West Point, New York 
s 
c 
2020 
23o 
West Point, New York 
s 
c 
2021 
23p 
West Point, New York 
s 
c 
2022 
24a 
Maidstone, Vermont 
s* 
c 
2023 
24b 
New Durham and Derry, [New Hampshire] • [Two cover- 
glasses on a single slide.] 
s 
c 
2021+ 
25a 
Near Tarrytown, Westchester County, New York 
s 
c 
2025 
25b 
Croton, New York 
s 
c 
2026 
26 a 
Derry, New Hampshire 
s 
c 
2027 
27 a 
Cherryfield, Maine; D.B.S. Shaw, Boston 
s 
c 
2028 
27b 
Blue Hill Pond, Maine; no. 1 and no. 2 
S* P 
c 
2029 
28 a 
Boston Harbor, Massachusetts. [Paleograph left with 
slide; no coverglass on slide.] 
S* P 
c 
2030 
28 b 
Boston Harbor, Massachusetts. [Paleograph left with 
slide; no coverglass on slide.] 
s* 
c 
2031 
28 c 
Boston, Massachusetts 
s 
c 
2032 
28d 
Boston, Massachusetts 
s 
c 
2033 
28e 
Boston Harbor, Massachusetts 
s 
c 
2031+ 
28 f 
Massachusetts Bay, Massachusetts 
s 
c 
2035 
28 g 
Wendell, Massachusetts; Dr. Deane 
s 
c 
2036 
28 h 
Wrentham, Massachusetts; siliceous infusoria acted upon 
by hydroflouric acid 
s 
c 
2037 
28i 
Salem, Massachusetts; Essex Co., New Hampshire Collections 
