3. Correspondence http://hdl.handle.net/11258/31934 2026-05-01T10:31:16Z 06 Thoughts on Optimal Conditions for Learning Article http://hdl.handle.net/11258/33665 06 Thoughts on Optimal Conditions for Learning Article TCO to Henry B. Clark II 0012-01-01T00:00:00Z 07 Response to William Martin Smith Regarding Expenses http://hdl.handle.net/11258/33666 07 Response to William Martin Smith Regarding Expenses TCO to William Martin Smith 0015-01-01T00:00:00Z 08 Letter to Mother http://hdl.handle.net/11258/33667 08 Letter to Mother TCO to Mother 0018-01-01T00:00:00Z 03 Update on Move and Interest in Working Together http://hdl.handle.net/11258/33662 03 Update on Move and Interest in Working Together TCO to Bard 0017-01-01T00:00:00Z