1900] MICROSCOPICAL JOURNAL. 119 



spiral deposit does not consist of one long-,continuous fibre, 

 as usually stated in books, but in reality it is made up of 

 comparatively short pieces, rarely extending- unbroken be- 

 yond a few turns round the tube. Mr. Michael doubted if 

 this observation was new, and thoug-ht the correct struc- 

 ture, which was as stated by Mr. Merlin, would be found 

 described in the more modern German works — suchas,for 

 instance, Lang-'s "Comparative Anatomy." Mr. Hug-hes 

 also quoted some authorities to the same effect. Mr. Hil- 

 ton thoug-ht the very term "spiral fibre" a misnomer. In 

 some cases, at least, it could be made to disappear on pres- 

 sure, and in his view the appearance was produced by fold- 

 ing, like the extending- bellows of a camera, and was oblit- 

 erated in the same way by being- stretched. Mr. J. T. 

 Holder then gave an exhibition with the lantern, project- 

 ing- some 130 beautiful photog-raphs on the screen. The 

 subjects comprised veg-etable and animal histolog-y, dia- 

 toms, radiolaria, and foraminifera, &c., and were all his 

 own work. A very cordial vote of thanks to Mr. Holder 

 was moved by the President and carried by acclamation. 

 The decithsof Mr. J. W. Bailey, Mr. W. Goodwin, and 

 Amos Topping-, the well-known mounter, were referred to. 



NEW PUBLICATIONS. 



Manualof Bacteriology. — Young- J. Pentland,Edinburg-h 

 and London, p. xviii 564. Fig-. 126. New York, MacMil- 

 lan Co. 1899. 



The fact that a second edition of Muirand Kitchie'sMan- 

 ual of Bacteriology has appeared in two years speaks well 

 for the work. It is essentially a work for practitioners and 

 students as it deals only with those bacteria and other low 

 organisms, Amoeba and Plasmodia connected with the dis- 

 eases of man. The work only deals with the pathog-enic 

 bacteria of man and only incidentally touches upon those 

 occuring- in lower animals when the same org-anism occurs 

 in both. It is to be reg-retted that the authors did not in- 

 clude the other animal bacterial parasites. It would have 

 added greatly to this excellent volume. The g-eneral ac- 



