, NOTES AND MEMORANDA, 179 



ever, that the unbroken shell of an egg is permeable to 

 liquids, and that these may introduce germs into its interior. 

 He has, in fact, actually inoculated uncontaminated eggs 

 with a fungus which he had obtained from the interior of 

 one in which it had made its appearance in a way appa- 

 rently so mysterious, and had cultivated in egg albumen. — 

 Academy. [The Rev. M. J. Berkeley states that he has 

 found Claclosjiorium herharum, in the interior of ordinary 

 fowls' eggs.] 



Supposed encysted Entozoon with ova. — Dr. Maddox's ac- 

 count of the occurrence of an encysted entozoon with ova, 

 in the muscles of a sheep noticed in our last volume (p. 302), 

 is seriously questioned by Dr. Cobbold, who thus writes in 

 ' The London Medical Record' (p. 487, 1873). 



It forms an important contribution to our knowledge of 

 the structure of the mutton measles [Cysticercus ovis, T. S. C); 

 but the author has, without doubt, fallen into errors of in- 

 terpretation, which are too important to be passed over with- 

 out comment. The entozoon in question is clearly the same 

 as that which Avas first described by the writer of this notice 

 at a meeting of the Pathological Society, April 3rd, 1866 

 (* Trans. Path. Soc.,' vol. xvii. p. 463) ; other particulars 

 having subsequently been given in the writer's small volume, 

 ' On Tapeworms' (1867, p. 83), and in the supplement to 

 his larger treatise ('Entozoa,' vol. ii. p. 30), 1869). These 

 references appear to have escaped Dr. Maddox's attention, 

 but the actual facts observed by him are particularly valuable, 

 as adding numerous particulars to those already observed. 



That we have here a larval cestode entozoon, cystic hel- 

 minth, small bladder worm, or meat measle shown to be 

 capable of developing ova in its interior is the conclusion 

 arrived at by Dr. Maddox. He has evinced the most pains- 

 taking care in comparing the so-called calcareous corpuscles 

 of this cysticercus with the ova of a mature tapeworm ; and, 

 notwithstanding the accuracy of his admirably drawn figures, 

 he is perfectly satisfied that his encysted entozoon contains 

 well-formed eggs. Dr. Maddox even ventures (though with 

 evident hesitation, as the marks of. interrogation placed here 

 and there imply) to refer to such structures as the intromittent 

 organ, the ovarium, and vitelligene organ. 



From Dr. Maddox's own figures, apart from the over- 

 whelming evidence derived from the records of helminthology 

 and personal experiences, the writer of this notice is quite 

 satisfied that the so-called ova are not in reality eggs, but 

 merely large calcareous corpuscles closely resembling them. 

 The cystic entozoon removed by Dr. Maddox from the 



