No.	Title	Date
3841	A moral equivalent for violence	1968
3842	A response to the violence of our time	1968
3843	Sing out America	1968
3844	The Hebrew concept of Ahvodah	1968
3845	The leaven in the dough	1968
3846	Alberto Bolet and three children watching a man play the violin	1968/1980
3847	Alberto Bolet in a classroom	1968/1980
3848	Panama Canal 1	1968-07
3849	Panama Canal, Gatun Locks	1968-10
3850	Panama Canal locks 1	1968-10
3851	Panama Canal locks 2	1968-10
3852	Panama Canal locks 3	1968-10
3853	Panama Canal locks 4	1968-10
3854	Panama Canal locks 5	1968-10
3855	Panama Canal locks 6	1968-10
3856	Panama Canal locks 7	1968-10
3857	Panama Canal locks 8	1968-10
3858	Panama Canal locks 9	1968-10
3859	Panama Canal locks 10	1968-10
3860	Panama Canal locks 11	1968-10