VOL. XXVI.] PHILOSOPHICAL TRANSACTIONS. 53Q 



but grew larger by the accession of new matter, until they became large grains 

 ot sand ; and also, that some diamonds were formed just after the same 

 manner. 



Now as we find, that in the solution of silver by aquafortis, some of the 

 small silver particles are coagulated in crystals of the figure of diamonds; and 

 that the sugar which is boiled to a syrup, in order to make sugar-candy, is also 

 coagulated into such particles ; so we may likewise suppose, that at the time 

 when the diamond particles coagulate, a great deal of the same matter they 

 are composed of, is in the air, but not to be perceived by our naked eye, nor 

 the quantity thereof to be known, until it is coagulated into a body. 



An Account of a Child's crying in the JVomb. By the Rev. JV, Derham, 



F.R.S. N°324, p. 485. 



I lately visited a woman brought to bed a week since, of a boy that had 

 cried in her womb, at times for near 5 weeks. The child appears to be strong, 

 and has been since its birth very quiet. The woman's name is Clark, and 

 resides 2 miles from me, at Hornchurch. She told me, the first time the 

 child cried was in the night, as she lay in bed, after a great pain which forced 

 her out of bed, and gave her apprehensions of her labour being nearer than 

 her reckoning. And every time after, whenever the child cried, she had 

 violent pains like those of labour. From the first time of its crying, the child 

 settled itself on the mother's left-side, and she never perceived it stir until its 

 birth approached. Scarcely a day in all the 5 weeks escaped without crying. 

 The midwife told me, she heard it cry 17 times in half an hour. Its crying 

 might be heard into the next room. Both the mother, and midwife, a sensible 

 woman, answered me a great many questions. In general they told me, they 

 found no great difference between her case, and that of other women in the 

 same condition. I asked the woman whether she had received any falls, or 

 hurts, or was troubled with longings more than with her child before } She said 

 she had received no hurt, but was more inclined to longing ; but had what she 

 longed for. 



A short Dissertation concerning the Child's crying in the fVomb. By the Rev, 

 W. Derham, F.R.S. N° 324, p. 487. 

 Among the authors that question the fact of the vagitus uterinus, two of the 

 most considerable are Etmuller and Diemerbroeck. Etmuller declares Diemer- 

 broeck's opinion, as well as his own, in his Dissertation de abstruso Respirationis 

 Humanae negotio, ch. g, where he treats of Dr. Harvey's Problem, why the foetus 

 after delivery, and before it has breathed, can live for some hours in its after-bur- 



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