io8 
The Irish Naturalist. 
April, 
TYRONE NATURALISTS' FIELD CLUB. 
February 23. — Mr. James Dickson, J.P., in the chair. Nevin H. 
Foster, of Hillsborough, lectured before a large audience on the 
" Feathered World," dealing especially with Irish birds and their habits. 
DUBLIN NATURALISTS' FIELD CLUB. 
February 10.— ExcuRvSion to Kri,i.iNEY.— The Club, under the 
conductorship ot J. de V/. Hinch, visited the junction of the granite 
with the Silurian slates. The section on the sea-shore yielded a number 
of minerals, including andalusite, microcline, etc. Return to Dalkey 
Station was made over Obelisk Hill. 
February 13. — The third meeting of the Session was held in the 
Royal Irish Academy House — G. H. Pethybridge in the chair. C. 
Murray, B.A., read a paper on "The Occurrence of Animal Remains 
at Loughshinny." F. O'B. ETvI<ison. B.A. (Hon. Sec), then read a paper 
on " Bacterial Disease in Plants." Mr. Willcox displayed a number of 
minerals obtained on the previous Saturday at Killiney. 
DUBLIN MICROSCOPICAL CLUB. 
February 14.— The Club met at I/einster House. Dr. R. F. Scharff 
(President) in the chair. 
John A. Clarke exhibited films prepared from blood of cattle 
suffering from red-water, stained to show the sporozoan parasite 
Piroplasina bigeminwn in the red corpuscles. 
Prof. G. H. CarpiCNTER showed eggs of the Ox Warble fly {Hypoderma 
bovis) and demonstrated the small, ovoid, grooved process by means of 
which the eggs are fixed in rows to the hairs of the cattle. 
A. R. N1CH01.S showed specimens of the polyzoon Bypophorella expansa, 
Ehlers, discovered by him in tubes of Chaetopterus dredged by the late 
A. G. More in Broadhaven in 1873. This interesting addition to the 
Irish marine fauna is descril^ed at length on p. 87 supra. 
F. W. Moore exhibited a section through a piece of wood of the 
Victoria plum. The section was taken from a twig which had been cut 
back in April, 1905. The wood just below the cut had become coloured 
bright red, the colour extending about half way through the shoot, and 
for less than quarter of an inch in length. The rest of the shoot being 
normal in colour the contrast was remarkable. 
J. N. Hai^berT exhibited mounted specimens of a common and 
destructive mealy bug {Dactylopiiis citri) found in numbers on grapes. 
Dr. G. H. Pethybridge showed sections of the leaves oi Andromeda 
Polifolia, L. attacked by the parasitic fungus Rhytisma andromedae, Pers., 
recently recorded as new to Ireland (/'/w. R.I. A., xxv., B. no. 6, p. 164). 
