XXX. ABSTRACT OF PROCEEDINGS. 



2. A Monograph of the Freshwater Entomostraea of New South Wales. 

 Part ii. Copepoda. By Marguerite Henry, B.Se., Linnean Madeay Fellow of 

 the Society in Zoology. 



3. New or little-known species of Australian Tipulidae (Diptera). i. By 

 C. P. Alexander, Ph.D. {Communicated by Dr. E. W. Ferguson). 



4. The Effect of Suspended Respiration on the Composition of Alveolar 

 Air. By H. S. Halero Wardlaw, D.Sc. 



5. On Australian Anthicidae (Coleoptera). By Arthur M. Lea, F.E.S. 



6. A Contribution to the Parasitism of Notothixos incanu^ (Oliv.) var. 

 suhaureus. By J. McLuckie, M.A., D.Sc. 



7. The Phylogenetic Significance of the Marsupial Allantoplacenta. By 

 Professor T. Thomson Flynn, D.Sc. 



NOTES AND EXHIBITS. 



Professor T. W. Edgeworth David exhibited a microslide of chert of Lower 

 Permian age collected by Dr. "W. R. Browne and himself from strata of the 

 Lower Marine Series from about 1^ miles N.N.E. of Eelah, near West Maitland. 

 It contains spore cases, perfectly resinous and translucent, some of which appear 

 to contain microsporangia. The chert is largely a very fine volcanic tuf£ re- 

 distributed in water. 



Mr. W. M. Came exhibited a specimen of a wild oat, Avena sterilis, from 

 Richmond not previously recorded as a weed in this State. There are no Aus- 

 tralian specimens in the National Herbarium. This species is believed to be the 

 origin of most of the oats now cultivated in this State. These varieties have 

 largely replaced those of the cooler parts of the world which are derived from 

 Avena fatua L. 



Professor T. Thomson Flynn exhibited an intracranial cast of the whale 

 Prosqualodon davidis from the Miocene Beds at Wynyard, Tasmania. The cast 

 shows a well developed olfactory peduncle, low development of the cerebral 

 hemisphere, well formed optic chiasma and other primitive features. 



Mr. E. Cheel exhibited specimens of the common "KJnot-Grass" {Polygonum 

 aviculare L.), infested with a rust fungus Uromyces polygoni (Pers.) Fekl., 

 colleoted at Ashfield in December, 1920, and each successive year during the 

 months of November and December. It is recorded by McAlpine (Agric. Gaz. 

 N.S.W., vii., 1896, 301) from near Melbourne but has not been recorded pre- 

 viously for this State so far as can be ascertained. 



He also exhibited specimens of a common fungus Schizophyllum commune 

 received from Mr. D. Q. Stead, who states that he collected it at the Public 

 Market at Teluk Anson, Perak, F.M.S. It is used commonly as "Makan" (food), 

 in preparation for which it is cooked (boiled) as an ordinary vegetable and is 

 eaten with rice, cocoanut, etc. Sold throughout the Malay Peninsula. 



Mr. J. H. Maiden sent for exhibition specimens of Linnea boreal/is L. var. 

 americama collected by Mr. C. Hedley on the Klondyke Gold-field, Alaska, U.S.A., 

 at the end of July, 1922. 



Miss V. Irwin Smith exhibited a collection of parasitic nematodes from a 

 chicken and a goat hitherto unrecorded in Australia from these hosts. They 

 were all obtained in Sydney, two species from the chicken and six species from 

 the goat. 



From the chicken, a young cockerel of the breed known as Rhode Island Red, 

 seven specimens of Acuaria {Cheilospirura) hamulosa Diesing, six females and 

 one male, were collected from a nodule projecting externally from the gizzard. 



