Progress of the Knowledge of Natural History. 49 



the suggestion affixed to it in p. 462. In reply, I beg to state 

 that the species of Crustacea there described, although differ- 

 ent, in some particulars, from the genus of Leach and La- 

 treille, as published in the Malacostraca of De Blainville, may- 

 still, with propriety, be left among the Phyllosomata, to pre- 

 vent the multiplying of terms and families. My individual 

 appears to have been undescribed ; and, in proposing a name, 

 I conceive Phyllosoma sarniense, from its locality, Guernsey, 

 to be less objectionable than applying to it one derived from 

 its form or other peculiarity, which, in a genus as yet little 

 known, may be liable to variation in relative significance. 

 May 1 draw your attention to an incorrect reference made 

 under Jig. 38. in p. 459.? where it is said, " a, a represent- 

 ation of the animal," &c, " the aspect ventral ; " it should be 

 aspect dorsal ; and b, " the aspect dorsal," should be aspect 

 ventral. — F. C. Lukis. Guernsey, Oct. 22. 1835. 



[Mr. Lukis's correction, in the cases mentioned, renders 

 necessary the additional one of reading a for b } in p. 461. 

 line 9.] 



Art. XIX. Man's Progress in the Diffusion of the Knowledge of 

 Natural History. 



The Islington Literary and Scientific Society. — This Society 

 gives direct attention to natural history : among the subjects 

 which it facilitates the acquisition of the knowledge of, zoology 

 and astronomy are subjects enumerated in a short list of lec- 

 tures sent; the zoology to be treated on by Dr. Grant, the 

 astronomy by J. Wallis, Esq. The rayed animals (Radiata 

 or Cycloneura) are the subject of four lectures by Dr. Grant, 

 and a syllabus of these is given in the printed circular sent ; 

 all of these will have been delivered before the publication 

 of this notice. The whole must, from Dr. Grant's cha- 

 racter, be rich in interesting information and views. This 

 Society has a library and museum. " The museum is enriched 

 with collections in various departments of natural history and 

 science." 



The Royal Geological Society of Cornwall held its twenty- 

 second annual meeting on October 9. 1835, and reported on 

 the events that had transpired relative to it through the past 

 year. Considerable additions have been made to the museum, 

 partly by purchase and exchange, but principally by donations. . 

 The curator, assisted by the secretary, has been engaged in 

 reducing to order the various series of geological specimens 

 that had accumulated. Several treatises have been commu- 



Vol.IX. — No. 57. e 



