294: FROCEEDINGS OF SOCIETIES. 
June 14th. 
De vero Telescopii inventore, Accessit etiam centuria 
observationum Microscopicarum. By Petro Borello, 
1655 A . F.C.S. Roper, Esq. 
A Collection of the Minute and Rare Shells lately dis- 
covered in the Sand of the Sea-shore near Sand- 
wich. By Wm. Boys, ce F.S.A., and Geo. 
Walker, lMsq. ; Ditto. 
List of Dintonmces occurring in She Neighbourhood of 
Hull. By G. Norman, ‘Esq. 4 The Author. 
A Treatise on the Construction, Proper Use, and Capa- 
bilities of Smith, Beck, ‘and Beck’s Achromatic 
Microscopes. By Richard Beck, Esq. . . Ditto. : 
Photograph of a small Glass Tumbler R. Beck, Esq. 
Proceedings of the Literary and Philosophiea Society 
of Liverpool, No. 18 The Society. 
Intellectual Observer, No. 40 . The Editor. 
The Annals and Magazine of Natural History, No. 90 . Purchased. 
The Quarterly Journal of Microscopical Science, Nos. 
4 to 33 inclusive, Old Series . ? . H. Rutt, Esq. 
Ditto, Nos. ] to 16 inclusive, New Series. Ditto. 
W.G. See Curator. 
Nartvurat History Society or DuBLIN. 
On the OccuRRENCE of Sprran VEssELs in the THatius of 
EVERNIA PRUNASTRI (Ach.; Linn., sp.). By Apmirau T. 
Jones, F.LS., F.G.S. 
Wuitst examining the thallus of Hvernia prunastri, gathered at 
Curraghmore, my object being to ascertain whether certain dark 
spots on it were parasitic, fungoid, or of insect origin, I was sur- 
prised to find bundles of spiral vessels. The portion under ex- 
amination 6n the table of the microscope was necessarily very 
minute. I satisfied myself that the dark spots were occasioned by 
insects; but, after repeated attempts, I did not succeed in again 
finding spirals. It is, however, desired to record this occurrence 
of spirals, and Mr. Archer has very kindly made asketch of them, 
which accompanies this paper. I have always taken the greatest 
pains to perfectly clean the glasses I use in microscopic examina- 
tions, and I do not believe any error has been occasioned by 
neglect of this necessary precaution ; but as I failed in my attempt 
to find these spiral vessels a second time, I think it prudent 
merely to record their occurrence. 
Dr. David Moore, F.L.8., considered the society should feel 
itself much indebted to Amiral Jones for making it the medium 
by which he made public so remarkable an observation. He had 
himself seen the specimen, and believed that not only did the 
