Autograph letter signed to John Willis Clark
Autograph letter signed to John Willis Clark
Autograph letter signed to W.M. Smart
Autograph letter signed to W.M. Smart
Autograph letter signed to W.M. Smart
Autograph letter signed to W.M. Smart
Autograph letter signed to W.M. Smart
Autograph letter signed to W.M. Smart
Autograph letter signed to W.M. Smart
Autograph letter signed to W.M. Smart
Copy autograph letter signed to D.H. Sadler
Copy autograph letter signed to D.H. Sadler
Copy autograph letter signed to D.H. Sadler
Copy autograph letter signed to D.H. Sadler
Copy autograph letter signed to the Editor of Nature
Copy autograph letter signed to the Editor of Nature
Copy of letter to D. MacAlister
Copy of letter to D. MacAlister
Copy of letter to G.B. Airy
Copy of letter to G.B. Airy