JouK. Kov. yoc. Western Al'Wtkai.ia, \'oi.. X\L xvii 
•Mr. W. M. (,’AKNK — Specimens of the sterile {X^lo.'itroma 
(/itfanlnuii, Flies) sta^'e of undetermined jiolvporoid fun^'i takc'ii 
rrom Karri, Jarrah and Tuart h»i»s. Also a speeiineu of 'I' ramctcs 
lilaciito-f/ilvo, I-Uu-k, fi'om an uiiidejitilied Fuealyjttiis lojx at Marvel 
Jjocli, sliowiii';' both f nietificatioii and Xylostroma sla^'es. 
-Ml'. L. OJjAUFKT— A Red Tailed Tro])ic Itirtl Pliaclhon ruhri- 
Kituius shot at (iinj^in Brook by Mr. \'. Jones in August last. 
bii'd breeds in the Al)rolhos Islands, where it generally arrives in 
November. Its presenee at (lingin in August is, therefore, all tlie 
moi'e remarkable. This is the first reeord of the Tropic Bird ai 
lh(' >Swan River <listriet as defined by Air. W. B. Alexander in his 
paper to “tlie Kmu’’ in IDt^l. Air. Oregory Aiathews’ statement 
ll’.at the bird occurs on Rottnest is due to a confusion of tliat Island 
with Rat Island in the Iloutman’s Abrollios, where' s[K‘ciinens were 
c(flh'<'t(‘d by Air. \. II. Bipfert in 1894. A fresli-water sjjonge, 
jii'obably hjihiiduUa iiiultifoniiis so common in many of the lakes 
and swam])s near Berth. The specinu'iis exhibited were found in 
wat(>r pipes conveying de-aerated water. Presented to the Aluseum 
by the' ( hit'f Bngineer for Watei' Sup])ly. The ])resence of this 
siioiige in w:iter mains is of economic importance, as iniKdi lroul>h' 
lias been caused l>y similar growths in the water mains of "water 
works” in Britain, America, France, Holland and Germany. 
December, 1925. 
Mr. A. GI1H5 AIAITIjANI) — G laciated pebbles, collected by Air. 
II. W. it. Talbot from the Poole Range, to the south of Xmas Creek, 
l)et\\('eii Alount bynnot and [jight Jack Hills. The horiz{>n is about 
80 feet thick, and is well above the I>ase of the formation, for a 
l)ore has l)een ])ut down to aliout 2400 feet below it. Two photo- 
graphs of Kimberley geological formations taken by Air. T. Blatcli- 
ford. 
Air. 0. A. GARDNER — Botanical specimens collected by him- 
s('lf and J)r. W. PI. Blackall — (a) from summit of Aliddle Alt. Itarren, 
y.W. of Ravensthorpe— //'n/reu Hookvriana, Acacia cedroidcs, Boronia 
aibiflora; (b) West of Ravensthorpe- — Bossiaca caJyciua, Ca^suarina 
acuaria, NcinatoJepis pkebaHoides, Cal ycopepJus m-arpinatus. 
Air. W. AI. CARNE — Specimens of wheat affected witli a bac- 
terial <lisease Psciido-monas tritici, Hutchinson, in association with an 
attack of Ear Cockle, Tylcndnas tritici (Stein) Bast. PTeld evidence 
hei-e sui)])orts the finding of Eahmy and Alikhail in P^gypt (Agric. 
Jnl. Plgyi)t N'.S. 1. 1., 1924) that Pseudomonas tritici is incapable 
of producing infection in nature witliout the assistance of the nema- 
todes. The s])ecimens came from a farm at Yelbeni, where the 
disease had been first noted by the owner in 1924. Pseudomonas 
tritici has been )u-eviously recorded only iji India and Egypt. Its 
