84 Dr Barry's Besearches on Embryology. 



heaven, and the stars glitter with a radiance unknown in less 

 genial climes — where the land wind rises, and is felt, but not 

 heard, for the stillness of midnight is not broken as its soft 

 breath comes from the untrodden depths of the wilderness, 

 laden with the fragrance of the spice tree and the wild flower. 

 But in that luxurious region. Nature at times shews herself 

 in the power and sublimity of her convulsions, and awes by the 

 earthquake, the tornado, and the thunder-storm. Her hours 

 of anger are fearful, but are soon forgotten as she resumes her 

 almost permanent tranquillity.* 



Researches on Embryology ; Third Series : A Contribution to the 

 Physiology of Cells, By Martin Barry, M. D., F. R. SS. 

 L. &; E., Member of the Wernerian Natural History So- 

 ciety, Fellow of the Royal College of Physicians in Edin- 

 burgh. 



In the second series of these researches, of which an account 

 is given in the twenty-seventh volume of this Journal, the 

 author had traced certain changes in the mammiferous ovum 

 consequent on fecundation. The object of his present very 

 interesting communication, which was read before the Royal 

 Society of London on the 7th of May 1840, is to describe their 

 further appearances, obtained by the application of higher 

 magnifying powers ; and to make known a remarkable process 

 of development thus discovered. In order to obtain more 

 exact results, his observations were still made on the same 

 animal as before, namely, the rabbit, in the expectation that, 

 if his labours were successful, it would be comparatively easy 

 to trace the changes in other mammals. By pursuing the 

 method of obtaining and preserving ova from the Fallopian tube, 

 which he recommended in his last paper, he has been enabled 

 to find and examine 137 more of these delicate objects ; and has 

 thus had ample opportunity of confirming the principal facts 

 therein stated. He has now procured in all 230 ova from the 

 Fallopian tube. But being aware that repeated observations 



* Sillimaa's American tToomal of Science and Arts, vol. xsjiLyiii, p. 315 . 



