Autograph letter signed to J.C. Adams
Autograph letter signed to J.C. Adams
Autograph letter signed to J.C. Adams
Autograph letter signed to J.C. Adams
Autograph letter signed to J.C. Adams
Autograph letter signed to J.C. Adams
Autograph letter signed to John Couch Adams
Autograph letter signed to John Couch Adams
Typed copy of letter to Edward Sabine
Typed copy of letter to Edward Sabine
Copy of letter to J.F.W. Herschel
Copy of letter to J.F.W. Herschel
Autograph letter signed to Donald MacAlister
Autograph letter signed to Donald MacAlister
Copy of letter to his parents
Copy of letter to his parents
Copies of article
Copies of article