LINNEAN SOCIETY OF LONDON. 4 1 



(1S88), of which Lloyd Praegei", a most competent judge, sars, 

 that " its fulness, accuracy, and schohu'ly style place it high 

 among works of the kind." In 13'Ji he was appointed Curator 

 of the Belfast Museum, which post he held until ltiU7. He was 

 elected Associate of the Society in 1904. A list of his publica- 

 tions and further particulars of h"s life and achievemeuts, as well 

 as a portrait, were published in ' The Irish Naturalist,' vol. xix. 

 (191U) pp. 201-209. [O. SiAPF.] 



By the death of Dr. Melciiiou Treub, at St. Eaphael on the 

 J3rd October, 1910, the Liiuiean Society has lost one of its most 

 distinguished Foreign Members, and Botany one of its most able 

 exponents. 



He was born at Voorschoten, three miles S.W. of Leyden, on 

 the 26th Decen)ber, 1S51 ; and soon showing his love for Natural 

 Science, he devoted himself to its study at Leyden under 

 Prof. W. r. li. Suringar, but early struck out into other direc- 

 tions than those usually then followed at that University. His 

 dissertation ' Ouderzoekingen over de natuur der lichenen,' 

 Leiden, 1873, was upon the then burning question of the inde- 

 pendent entity of Lichens, and Treub succeeded by cultures in 

 showing that gonidia did not arise from hyphae, a theory pre- 

 viously only tentatively advanced. For this he received a gold 

 medal, and became assistant to Prof. Suringar. A small paper 

 on the pappus of Hieracium nmbellatum followed, where he 

 observed, in a plant affected by galls, the altered Hower-heads 

 displayed 5-leaved calyces and other transitions, from which he 

 concluded that the pappus arose from division of the calyx- 

 segments. 



' lets over het Chlorophyll,' which came out in the following 

 year, 187-A, showed his powers in a new field, and one to which 

 he recurred in later years when in Java ; in this he specially 

 dealt with the occurrence of red and green colouring-matter. 



After this his writings were most often expressed in French, 

 Ins mothers native tongue, beginning with ' Le meristeme primitif 

 de la racine dans les Monocotyledones,' 1870, and ' liecherches 

 sur les organes de la vegetation du Sdag'mella Ilartensii,' Leiden, 

 1877; and his first essay in cytology, 'Quelques recherches sur 

 la role du noyau dans la division des cellules vegetales,' Amster- 

 dam, 1878, and in 1879 his observations on sclerenchyma and 

 multinucleate cells, and 'Notes sur Tembryogenie de quekjues 

 Orchidees,' Amsterdam. 



By this time his gifts and scientific industry had drawn atten- 

 tion to him ; whilst still assistant to Siu'ingar he was chosen a 

 Member of the Dutch Academy of Sciences, and when li. H. C. C. 

 Scheffer's death left the post of Director of the Botanic Gardens 

 at Buitenzorg vacant, Treub was thought the best man for tho 

 place, though he was not at first disposed to accept it. 



The Garden at Buitenzurg, founded in 1817 by lieiuwardt, 



