596 REPORT—1904. 
15, Report on the Occupation of a Table at the Marine Laboratory, 
Plymouth.—See Reports, p. 297. 
16. Report on the Zoology of the Sandwich Islands,—See Reports, p. 298. 
17. Report on the Madreporaria of the Bermuda Islands. 
See Reports, p. 299. 
MONDAY, AUGUST 22. 
The following Papers were read :— 
1. Egyptian Eocene Vertebrates and their Relationships, particularly with 
regard to the Geographical Distribution of Allied Forms. By Dr. C. W. 
ANDREWS. 
2. ‘ Normentafeln’ of the Development of Vertebrata. 
By Professor F. KErBen. 
The ‘ Normentafeln’ are meant to form a sound foundation for the comparative 
anatomy of the vertebrata. 
Each Normentafel gives (i.) an almost complete series of drawings of 
embryos; (ii.) tables concerning the degree of development of the various 
organs, with a few illustrations in the text ; the tables furnish data concerning 
the exact time of appearance of organs which permit of criticism of ‘ biogenetical 
law’; (iii.) a bibliography arranged alphabetically and according to subject. 
Those already published relate to the pig, chicken, ceratodus, and lizard. The 
frog by Dr. Kopsch, and the rabbit by Professor Minot and Dr. Taylor, will 
shortly appear. 
3. On the Embryos of Apes. By Professor F. Krrpet. 
The embryos of the apes, of which I have the pleasure of showing you the draw- 
ings and photographs, belong partly to the collection of Professor Selenka, who 
unfortunately died before having completed his investigations. I am indebted to 
Professor Hubrecht for the rest. Specimens are shown of orang-utang, gibbon, 
macacus, and semnopithecus. The youngest embryo in my possession measured 
13 mm., and resembled in its development a human embryo of about 12-14 days, 
the oldest—measuring 3 em.—corresponding to a human embryo of 10-12 weeks. 
The result of this examination, which proves of the greatest general interest, is 
the close resemblance which the ape embryos show to the human embryos in 
relative stages. This result Selenka concisely emphasised shortly before his death 
in the ‘ Biologische Centralblatt.’ 
Various differences—apart from the tail—are to be traced by closer study, not 
only between human and simian embryos, but also between the different species of 
apes. I do not doubt that it will be possible in course of time to detect differences 
in the early stages of these various embryos. We are already able to do this 
without difficulty from the fourth to the fifth week. 
4. On Professor Loos’s recent Researches on Ankylostoma (the Miner’s 
Worm). By A. E. Surrey, /.2.S. 
Professor Loos, of Cairo, through Dr. Elliot Smith, communicated certain of 
his recent observations on Ankylostoma duodenale. 
Particular stress was laid upon the fact that the larve can penetrate the 
unbroken skin without causing any visible lesion of the part. 
After thus passing through the skin the larvz enter the lymph vessels and the 
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