THE 



EDINBURGH NEW 

 PHILOSOPHICAL JOURNAL 



On Fissiparous Generation.'^ By Martin Barry, M.D. F.R.SS. 

 L. and E., M.W.S., &c. With a Plate. (Communicated 

 by the Author.) 



The first eight paragraphs of the following memoir, and the 

 notes appended to them, were submitted to Dr Bostock and 

 Professor Owen in April 1842, at which time I intended to 

 present them to the Royal Society, as part of an addition to 

 a paper that has since been printed in its Transactions. I 

 afterwards withdrew them, as more properly belonging to the 

 subject of the present communication. The eight paragraphs 

 in question are these. 



1. Among the facts adduced to shew the resemblance be- 

 tween the blood-corpuscle and the germinal vesicle, I men- 

 tioned that, in certain states, an orifice is to be discerned in 

 the centre of the parietal nucleus of both. The resemblance 

 here is very remarkable indeed. With regard to the germi- 

 nal vesicle, strong presumptive evidence was brought forward 

 to shew, that a substance of some sort is introduced by the 

 orifice in question ; and from this circumstance, I denomi- 

 nated the centre of the nucleus the point of fecundation. Can 

 it be, that the corpuscles of the blood undergo a sort of fe- 

 cundation through the corresponding orifice ? The blood- 



• From a paper read before the Royal Society of London, ICth Feb. 1 843. 

 VOL. XXXV. NO. LXX. OCTOBER 1843. P 



