1047 



" This observance serves, also, " We have thus three regular 



to give a neatness and uniformity sizes of paper, and tltis serves to 



to a collection, not to he accom- give a uniformity and neatness to 



plished by using papers cut at a collection, not to be obtained by 



random, or of casual dimensions.'''' using papers at random, and of 



— P. 19. casual dimensions^ 



These extracts speak for themselves, and require but little com- 

 ment. Dr. Drummond's paper has been laid under contribution, or 

 it has not. If Dr. Cocks has availed himself of the instructions for 

 drying the Algae therein contained, he should have said so : if not, 

 this division of his book offers as curious a case of identity of ideas 

 and phrases, as did the famous speech of a certain ex-Chancellor 

 which made so much noise a short time ago. 



' The Annals and Magazine of Natural History,' Nos. 67 and 68, 



July and August, 1853. 



No. 67 contains the following botanical papers : — 



' Remarks on some Algae belonging to the Genus Caulerpa ; by R. 

 K. Greville, LL.D., &c.' 



' Description of a New Species of Rhododendron from Bootan, in 

 India ; by Thomas Nuttall, Esq.' 



* Observations on Relative Position ; including a New Arrangement 

 of Phanerogamous Plants : — Part IV. On Dorsal Placentation ; by 

 B. Clarke, F.L.S., &c.' 



' On the Structure of the Leaves of Palms ; by M. A. Trecul. 



Miscellaneous : — ' On the Fecundation of the Fucaceae,' by M, 

 Gustave Thuret (from the ' Comptes Rendus') ; 'Experimental Re- 

 searches on Vegetation,' by Georges Ville. 



M. Thuret states that when the dicEcious Fucacege are kept in a 

 damp atmosphere, " the spores and antheridia are pushed out on the 

 surface of the fronds in great numbers." If kept in separate vessels, 

 the antheridia " emit their antherozoids, which move about with the 

 greatest vivacity ;" these movements, which are frequently continued 

 till the next day, gradually diminish in intensity, and on the third day 

 decomposition commences. " The spores remain for about a week 

 without sensible alteration ; they then also decompose without further 

 development. Sometimes phenomena resembling germination are 

 exhibited ; some of them emit irregular prolongations, but no septa 



