1852.] Linnean Society. 169 



the Tartarian. After some further notes on the chemical changes 

 produced in this plant and in Nostoc commune when treated with 

 iodine and sulphuric acid, and a reference to a passage in Kiitzing's 

 ' Grundziige der Philosophische Botanik,' where he speaks of these 

 plants as consisting in great measure of gelacin (a substance belong- 

 ing to the same category as bassoriu, and perhaps a modification of 

 it), Mr. Berkeley concludes by stating that a thin slice of gum tra- 

 gacanth, treated with iodine and sulphuric acid, assumes after a time 

 the same tint as the Nostoc. He believes, however, that starch is 

 often present in gum tragacanth, which is not likely to be the case 

 with the Nostoc ; and thinks we may safely assume the jelly of 

 Nostoc to be a state of bassorin, passing into cellulose or dextrine. 



Read the commencement of a Paper entitled " Botanical Notes 

 made during a Tour in France." By Joseph Woods, Esq., F.L.S. &c. 



February 3. 



Robert Brown, Esq., President, in the Chair. 



Baron Mxiller of Stuttgard, John Drew Salmon, Esq., and William 

 Wing, Esq., were elected Fellows. 



Read a Paper entitled " Further Observations on the genus An- 

 thophorabia, Newp." By George Newport, Esq., F.R.S., F.L.S. &c. 



The author stated that having had the good fortune, in September 

 last, to rediscover, at Gravesend, the parasite Anthophorabia, which, 

 twenty years ago, he found in the nests of Anthophora, at Rich- 

 borough in Kent, and an accoimt of which is given in a former paper 

 ('Proceedings,' March 20, 1849, vol. ii. p. 24), he felt it necessary 

 to ofi'er a few additional obsen-ations on this genus ; since one of the 

 most remarkable peculiarities of the male sex, the possession of three 

 stemmata on the vertex, and of a single stemmatous eye on each 

 side of the head, instead of the usual compound one of perfect insects, 

 had been repeatedly denied to be a fact ; the denial being printed 

 in the 'Proceedings ' of the Society for May 1, 1849, vol. ii. p. 37. 

 At the time the author described this genus it was well known that 

 he possessed only delineations of the insect, which he had made in 



