La Galla

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De phoenomenis in orbe lunae - title page.

De phoenomenis in orbe lunae noui telescopii vsu a D. Gallileo Gallileo nunc iterum suscitatis physica disputatio / a D. Iulio Caesare La Galla in Romano gymnasio habita, philosophiae in eodem gymnasio primario professore. Venice, Apud Thomam Balionum, 1612.

The title of this 1612 book by obscure 17th century Italian philosopher Giulio Cesare La Galla (1576-1624) includes the word "telescopii". This is one of the earliest appearances of "telescope" in a published work.

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De phoenomenis in orbe lunae - chapter1.