268 REPORTS FROM THE SECTIONS. 
ness; their oe was 1,600 diameters with the A. eye- 
ce. A valve of the W. rhomboides was shown under one of 
tices objectives Sate ed into 8. 
MacDonneE tt also oxbihiled Crouch’s new centering nose- 
, by m which an objective may be brought into 
i centricity with the revolving — — the latter is not 
furnished with any arrangement for effecting this 
Mr. Huan Paterson exhibited several esi containing local 
diatoms, principally varieties of the Pleurosigma. 
R 1s exhibited prepared hee of the male coccus 
of the orange, an insect somew e and difficult to procure 
on account of its diminutive size. 
The Rey. Geores Marri exhibited several slides of patholo- 
aaa 8 apa pement by himself, and subjected to Dr. Beale’s 
aining proc 
Ate re compl exhibited some diatoms from Port Jackson. 
TUESDAY, 9 OCTOBER, 1877. 
Rev. Grorce Marrrn in the Chair. 
Mr. H. Starr, of Adelong, presented several slides for the 
—— containing scales of different species of Podura, mounted 
by hi or which # vote of thanks was accorded. 
i - Brown exhibited some specimens of the pink Syn- 
apta, or Admiralty worm, found by him in Port Jackson. Mr. 
Brown made a few remarks on the habits of these creatures, the 
localities in which he had been most ee in finding them, 
and the method he recommended to be adopted for obtaining 
and mounting the anchor-shaped coipulee Mr. Brown’s remarks 
were listened to with some interest, as it has coe eae generally 
— that the Synapta is to be found on this ¢ 
Suarp read a paper on Zeiss’s soar with an 
secon of their es in his hands, by which it appeared 
esults obtained from some of the most difficult test objects 
procurable, that these aise exceeded many of the finest pro- 
and fine definition. Mr. Sharp, in illustration, showed so 
oa diatoms, including the WV. crassinervis, well ice 
wi eiss 31y-in. 
2 = oye ONNELL vinegar cha . —— anise — 
eonee which have found their way into the English market. 
Mr. MacDonnell quoted some extracts showing the haphazard 
