LINNEAN SOCIETY OF LONDON. 1 9 



objects of study resulted in the issue of his ' History of British 

 Lichens,' and many other papers which have appeared in our pub- 

 lications and elsewhere, which have been collected and republished. 

 His work ' Contributions to New-Zealand Botany,' which came 

 out in 1868, in 4to, was the outcome of a holiday employed by 

 him in a search after health at the Antipodes. His last book 

 treated of psychological subjects, and does not come within our 

 scope. He died in November last. 



Adolphus Eeginald Petoe was born at Hatfield in Hertford- 

 shire, 24th April, 1839 ; and after leaving school he proceeded to 

 University College, Oxford. From quite an early period of his life 

 he was much attached to the study of natural history ; but gra- 

 dually he came to devote himself more especially to Botany. In 

 1873 he began to make himself known by his contributions to the 

 history of critical species of the British Flora, in the pages of 

 the ' Journal of Botany ' and ' Nature ;' and in the following year 

 he was elected a Fellow of this Society. The whole bent of his 

 mind was singularly accurate; on even trivial matters he was 

 most painstaking to ascertain actual facts or the foundations of 

 reports. After some weeks' illness, he died at Baldock on the 18th 

 February of this year, leaving his collections to the Hertfordshire 

 Natural History Society, of which he was a V^ice-President. His 

 ' Flora of Hertford ' was in an advanced state at the time of his 

 death ; and it is therefore hoped that ere long it will be published 

 under the auspices of that Society. 



June 2nd, 1881. 

 Sir John Lubbock, Bart., F.E.S., President, in the Chair. 



The Minutes of the Anniversary Meeting were read and con- 

 firmed. 



Mr. Eobert Eomanis, D.Sc. Edinb., was elected a Fellow. 



Dr. Greorge Hoggan made some observations on the Lympha- 

 tics of Vascular Walls, specimens in illustration being exhibited 

 under the microscope. 



Mr. Thomas Christy also exhibited the following objects : — 

 Living Eubber-plants from West Africa, viz. Urostigma Vogelii 

 and a large specimen oi Taherncemontana crassa ; products o'i Pis- 

 tacia Terehinthus, viz. the nuts, the resin (for rendering paper 

 water-proof), and the so-called Pistacia-butter separated from 

 the resin, winch is used for sweetmeats in the East ; also China 

 Turpentine from the same tree. 



There were exliibited, onbehalf of Mr. Henry J. Elwes, samples 

 of pure Sulphate of Quinine made by Mr. Grammie, Superin- 

 tendent of the Grovernment Cinchona Plantations in Sikkim, 

 from the bark of Cinchona succiruhra and C. Calisaya by a uew^ 

 process discovered by himself, requiring no expensive chemicals 

 or apparatus. 



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