ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 291 



Endochrome of Diatoms.* — According to Dr. M. Lanzi, the form 

 and arrangement of the endochrome in a large number of species of 

 Diatomaceas varies according to the age of the individual, being 

 sometimes homogeneous, sometimes divided into a larger or smaller 

 number of distinct species. He regards this as a distinct confirmation 

 of the statement of Castracane f and others, that, in addition to 

 division, conjugation, and reproduction by auxospores, diatoms have 

 another, though rarer mode of multiplication, by non-sexual endo- 

 genous spore-formation. 



Diatoms in Town Water.± — Prof. W. I. Macadam mentions the 

 presence of certain diatoms left on the sandy filter through which water 

 supplied to Edinburgh had passed. Fragilaria capucina Desm. was 

 most abundant, together with various species of Cymhella, Encyonema, 

 Navicula, Achnanfhes, NitzscJiia, and others. He points out that the 

 presence of these is evidence rather of the purity, than of any 

 pollution of the water. 



Schmidt's 'Atlas der Diatomeenkunde.' — After a long interval, 

 parts 21 and 22 of this work are now published. They contain eight 

 plates, all of forms of Triceratium, including many new varieties, A 

 second edition of the whole work is also being issued. 



New Desmidiese. § — M. Eaciborski describes 175 species of 

 Desmidiese from the neighboui-hood of Cracow. Of these twenty-four 

 species are new, viz. — eleven species of Cosmarium, seven of Staur- 

 asfnim, one of Eiiast rum, two of Micrastei-ias, one of Cylindrocyst is, and 

 two of Penium. 



New Algological Journal— ' Notarisia.' — We welcome the ap- 

 pearance of the first number of a new quarterly journal entitled 

 'Notarisia: Commentariiim Phycologicum,' published at Venice, 

 under the editorship of Drs. G. B. De Toni and D. Levi, This 

 number contains a list, with diagnoses, of all new algfe published in 

 188.5, an index of algological literature for the year, and lists of 

 published collections of algse, with some other matter. The first 

 part of the editors' "Sketches of genera of Floridese, adapted to 

 Ardissone's ' Phycologia Mediterranea,' " consists of two plates in 

 photo-lithography, with accompanying letterpress, and illustrates 

 the genera Callithamnion, Grijfithsia, Halunis, Crononia, Ceramium, 

 Ceniroceras, Microcladia, and Chantransia. 



Fungi. 



Behaviour of the Nucleus in the Coalescence of the Cells of 

 Fungi. II — Herr C. Fisch has investigated this process in a number of 

 fungi, with a view to determine the existence or otherwise of a true 



* Atti Accad. Pontif. Nuov. Lincei, xxsvii.(lS85) 6 pp. 



t See this Journal, v. (18S5) p. 1041. 



j Proc. E. Phys. Soc. Edinburgh, ISSo, p. 483-5. 



§ Ber, Phvs. Com. Akad. Wiss. Krakau, xix. (1885) pp. 3-24 (5 pis.). 

 (Polisli with Latin diagnoses). See Oester. Bot. Zeitschr., xxxv. (1885) p. 438. 



II Versamml. Deutsch. Naturf. Strassburg, 1885. See Bot. Centralbl., xxir. 

 (188.5) p. 221. 



U 2 



