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Another Letter of Mr. DentV Afr. Ray r 

 without Date. 



I Could not # in my laft, of the I f th Inftant, give 

 you any good Account of the Eggs of Flair or 

 Tbornback^ becaufe they were very fmail then, and 

 only in the Vitellarium. Since that I have found a 

 Female Flair with two Eggs in Shells in the Duplex 

 Ovarium^ as Dr. Needham obferves in his Difquifttio 

 Anatomica^ p. 202. The one I dried whole, and 

 have it by me. I opened the other, and found the 

 Vitellum to be grown flat, fwimming in the Albumen^ 

 and with moving the Egg upwards or downwards 

 (I mean whilft: whole) would eafily glide through the 

 Albumen to which End I pleafed, which is eafy to 

 be feen* through the Shell between the Light and the 

 Eye. It was pale colour'd, and without any Cicatri- 

 cula^ which I do fuppofe will be found hereafter in 

 others more mature. Mr. Mayfield would perfuade 

 me that th'efe Fiihes are mvipafi ; for he faith, about 

 a Month or five Weeks hence I fhall fee the Fifh per- 

 fectly formed in that Egg- Shell. I doubt he is mi- 

 ftaken -> however, I will Weekly obferve their feve- 

 ral Alterations, and give you a full Account here- 

 after. The other Eggs (without Shells) in or upon 

 the Vitellarium^ are all round 3 the largeft: about half 

 the Bignefs of a Tennis-Ball. I boiled both Parts of 

 • them in Water 3 the Vitellum grew folid^ like to that 

 \ of a Hens, but the Albumen grew not white like the 

 Hen's Egg ; it grew a little more folid, but remained 

 diaphanous. I have enclos'd the Shell, which does 

 not agree with Dr. Needham' § Defcription of his feflk 



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