Mar. 1901.] BOTANICAL SOCIETY OF EDINBURGH 45 



Thuidium hystricosum, Mitt, (formerly confounded with T. abietinum). 



Philiberti, Linipr., first described as Britisii by Dixon, Jour, of 



Bot., Jan. 1897 — Craig Chailleach and Allt Dliubh Ghalair. 

 Orthotheciuni rufescens — frequent on mountains 



iutricatum — Craig Chailleach aud Ben Cruban. 



Brachythecium plicatuni — Ben Lawers (3000 ft.). 

 Eurhynchiuni cirrosum — Ben Lawers (3000 ft.). 

 Plagiothecium pulchellum, var. nitidulum. 



Miilleri. first described as British by Dixon, Jour, of Bot., July 



1898— Ben Cruban. 



striatellum — Ben Lawers and Craig Chailleach. 



Amblystegiuni curvicaule, var. strictum — Ben Lawers. 

 Hypnum Halleri — Ben Lawers (3500 ft.). 



exannulatutn, var pnrpurascens — Ben Lawers, .Meall Ghaordie. 



vernicosum — Auchmore Burn. 



sulcatum — Ben Lawers. 



hamulosum — frequent. 



callichroum — Ben Lawers. 



Bamberger! — Ben Lawers. 



molluscum, var. erectum. 



crista-casti'ensis — frequent in woods, aud among heather on 



the hills. 



arcticum — Beinn Ghlas (3000 ft.). 



ochraceum — frequent. 



stramineum — frequent. 



trifarium — Craig Mhor, Craig Chailleach, Beinn Ghlas, Ben 



Lawers. 



sarmentosum — frequent. 



Hylocomium rugosum — Craig Chailleach, Ben Cruban, etc. 



GIGLIO-TOS'S TllEOBY OF LiVING MaTTEH. ^ 

 By E. A. EOBEKTSON. 

 (Read 14th March 1901.) 



" If the parallel surfaces of two bodies be tangential to 

 a cell, and compress it during cell division, what is the 

 effect of the pressure on the direction of the plane of 

 division, division being equal ? " Such is one of the 

 biological problems mathematically set and solved by 

 Professor Ermanno Giglio-Tos in his work " Les Problemes 

 de la Vie," in which he gives his theory of living matter. 

 The fact that he regards vital phenomena as capable of 

 being expressed in mathematical problems like the above, 

 to be solved by mathematical formuhe, at once stamps his 

 theory as a novel one, and stimulates curiosity to know 

 more of it. 



His book discusses in detail assimilation and repro- 

 duction ; the molecule of living matter (biomolecule), its 



1 " Les Problemes de la Vie." Ire Partie. La Substance vivante et la 

 Cytiodierese. Dr. Ermanno Giglio-Tos. Turin. 



