Journal volume
1858. 1857. Proc. Acad. Nat. Sci. Philadelphia: [i]-viii, [1]-228, 1-4, i-viii, i-xiv.
≡
Journal issues
-
1857.
1, Jan 1857: [1]-16.
-
1857.
2, Feb 1857: 17-72.
-
1857.
6, Mar 1857: 73-100.
-
1857.
8, Apr-May 1857: 101-116.
-
1857.
9, May 1857: 117-148.
-
1857.
11, Jun 1857: 149-172.
-
1857.
13, Jul-Sep 1857: 173-182.
-
1857.
14, Oct-Nov 1857: 183-199.
-
1857.
15, Nov-Dec 1857: 200-214.
-
1857.
16, Dec 1857: 215-228.