Wathernatics. Collected works.
Huygens, Christiaan. 1629-1695. **E.192.7=**E. 5022.51 Opera reliqua. Amstelodami. Apud Janssonio-Waesbergios. 1728. 2 v. Dia-
grams. 4°. Contents. — 1. Tractatus de lumine. — Dissertatio de causa gravitatis
... Geometrica demonstratio theorematum Hugenianorum circa logi- sticam, seu logarithmicam lineam ... Addita epistola geometrica ad P. Thomam Ceyam, auctore D. Guidone Grando Cremonensi. 2, tomus 1. Dioptrica. — Commentarii de formandis poliendisque vitris ad telescopia. [This work is kept on the Special Libraries Floor.] (Continued on the next card.)
May 16, ae 1903
E8368 — Mathematics. Collected works.