Extract of a Letter from Mr. de Vallemont, etc. Concerning a Small Egg Being Found within an Ordinary One, Taken from the Journal des Savans of the 7th of Jan. 1696
De Vallemont. "Extract of a Letter from Mr. de Vallemont, etc. Concerning a Small Egg Being Found within an Ordinary One, Taken from the Journal des Savans of the 7th of Jan. 1696." Philosophical Transactions (1695) 632