Johnson, Gaylord · New York, The Macmillan company · leaf 157
^^HSt^^MRTH^^t^A/ZJ/^^ … ,Hit< ifiRJH ^*«, Yes, said Uncle Henry, and Mercury becomesa morning and evening star too—much oftener thanVenus does in fact—for it takes him only 88 daysto go completely around the sun, while Venus takes225 days for the trip. You know how long it takesus on the earth. Three hundred and…
Astronomy
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