1898] NOTES AND COMMENTS 37a 



graphic note, a summary of results on the zoological and zonal dis- 

 tribution, and a complete distribution table showing the occurrences 

 of the Foraniinifera throughout the whole of the Folkestone Gault 

 at intervals of 5 feet. Mr Chapman has also found time to issue a 

 note on the forms found in the Hartwell clay {Proc. Geol. Assoc. ^ 

 July 1897); to show that the proper specific name of Saccavimina 

 carteri is really " fusulinaformis" of M'Coy, 1849 {Annals Mag, 

 Nat. Hist., March 1898); to join with Prof. Eupert Jones in a 

 masterly resume of the whole of that singular genus Polymorphina 

 {Journ. Linncan Soc. Zool. 1896) ; and to write several other papers 

 of considerable interest. He also undertook the section Protozoa 

 in the Zoological Eecord, to which his contribution in conjunc- 

 tion with Dr Frazef Hume appeared in the volume for 1895. 



Dr E. M. Bagg has given us a detailed description of the 

 Foraniinifera in the Tertiary and Pleistocene beds of the Middle 

 Atlantic Slope {Bull. Amer. Paleont, vol. ii., Ithaca, N.Y., March 

 1898). American forms being so little known, this paper is the 

 more valuable, and we hope Mr Bagg will dip further into the 

 subject. The chief things to notice are a new Spiroplecta, S. clarki, 

 and Sinrillina orbicularis. Fifty-seven forms are enumerated. 



Dr Carlo Fornasini continues his descriptive work, and among 

 his papers are two in the Rencliconti B. Accad. Sci. 1st. Bologna, 1897, 

 which discuss the work of J. B. Beccari and 0. G. Costa respectively. 



Mr J. J. Lister deals in the Proceedings of the Boyal Society, 

 1897, with "a possible explanation of the quinqueloculine arrange- 

 ment of the chambers in the young of the microspheric forms of 

 Trilocidina and Bilocidina." As is well known from the researches 

 of Mr Schlumberger, the young of the megalospheric form of Biloculinct 

 commences with a large chamber, the later chambers being disposed 

 on either side of a single axis ; while in the microspheric forms of 

 the same genus, the young begins with a small chamber, and the 

 later chambers are disposed on a rotating axis, that is to say, the 

 plane dividing any single chamber symmetrically is not identical 

 with the corresponding plane of the preceding chamber, but directed 

 at a definite angle to it. It appears possible that, in the first case,, 

 the reproduction is asexual and in the latter sexual, but Mr Lister 

 confines himself to suggestion for the present {vide ante, p. 58). 



Finally, Dr Ludwig Rhumbler, of Gottingen, has a series of notes 

 on the double-shelled Foraniinifera, on reproduction and on struc- 

 tural peculiarities of Protozoa generally, which he published in the- 

 Biologisches Centralhlatt early this year. 



Flowers and Insects 



Sir John Lubbock in a recent contribution to the Linnean Society's 

 Journal {Botany, vol. xxxiii. pp. 270-278) adversely criticises some- 



