January 19, 1929 – Irving Langmuir to H. Smith Johannson January 19, 1929 – Irving Langmuir to H. Smith Johannson (Montreal, Canada) re: making plans for upcoming trip to the Laurentians… Share thisClick to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window) You May Also Enjoy Don't Miss Out On New Developments Click here to subscribeto our Newsletter
