SCIENCE AND INDUSTRY. 
Mr. Waterhouse exhibited the first specimen of Heteronympha solandri 
Waterh. reared from the egg. The history of the specimen js that a female was 
caught at Mt. Kosciusko on 15th February, 1920, and on dissection of the ab- 
domen four eggs were obtained; only one was fertile, and this emerged on 28th 
February and was looked after very carefully; the larva pupated at Sydney on 
8th September, and a male emerged on 10th October, about three months earlier 
than the usual time of appearance at Mt. Kosciusko. The female parent, the cast 
larval heads from the 2nd, 3rd, and final instars and the pupal skin were also 
shown. | 
Mr. E. Cheel exhibited a series of specimens collected in the coastal district 
from Sydney to the Upper Clarence, and on the higher elevation at Hill Top and 
on the Blue Mountains, including Boronia ledifolia J. Gaz.; B. ledifolia var. 
rosmarinifolia (B. rosmarinifolia A. Cunn.) from Hill Top (K. Cheel, July; 
1914), Bell (Miss H. Gregson, Sept., 1914), Mount Wilson (J. H. Maiden, Dee., 
1914), near Cowan Station (W. F. Blakely and D. W. GC. Shiress, Sept., 1919), 
and specimens with double flowers from Hill Top (HE. Cheel, August, 1915); B. 
ledifolia var. triphylla (B. triphylla Sieber) from Port Hacking (W. Slade, 
August, 1914), Kurrajong Heights (H. Dixson, September, 1897), National Park 
(M. Bell, August, 1901), Woy Woy (Miss A. C. Johnstone, July, 1916), and 
double-flowered specimen from Lindfield (E. G. Jacobs, August, 1913); Boronia 
pinnata Sm. with double flowers from Redfern (Mrs. Boyce, November, 1900) and 
Hornsby (W. F. Blakely, April, 1914); Hriostemon lanceéolatus Gaertn. with pure 
white flowers, Tomago (Lady Windeyer, September, 1903), Rose Bay (October, 
1906), Nelson’s Bay (J. L. Boorman, August, 1911); H. Crowei F. v. M. with 
pure white flowers from Hornsby (W. F. Blakely and D. W. C. Shiress,. Feb., 
1920) ; Kennedya rubicunda Vent. with greenish-white flowers, Wahroonga (M, 8S. 
Barnett, Sept., 1920); and Ceratopetalum gummiferum Sm. with white flowers 
from between Hornsby and Durall (W. J. Pitty, Dec., 1919). 
Mr. Cheel also exhibited on behalf of Miss A. A. Brewster specimens, and a 
chart, showing doubling of flowers and deterioration of the stamens of 
Hriostemon lanceolatus from Maroubra (October, 1920). In one specimen the 
stamens had multiplied to 16; in the more changed flowers the number varied 
from 1 to 4, and in one case there was left only a single anther seated on one of 
‘the inner petals. In two flowers the pistil was absent and five small petals 
were present in place of the carpels: in another the five degenerated carpels 
were partly green and partly pink. 
Mr. John Mitchell exhibited a’ series of Silurian and Devonian brachiopods 
from New South Wales. 
ROYAL SOCIETY OF QUEENSLAND. 
At the September meeting, Mr. H. A. Longman, F.L.S., exhibited a specimen 
of the Phyllopod, Lepidurus vi:idis Baird, which had been found in a “melon 
hole” at Tara, Darling Downs, and forwarded to the Queensland Museum by 
Mr. Wm. Hewins. Although well known jn other Australian States and in 
New Zealand, this is apparently the first record for Queensland. Specimens 
referring to the allied species, Apus australiensis, Spencer and Hall, had been 
sent in recently from Barearolle, W. Queensland, by Mr. F, L. Berney. Mr. 
Longman briefly referred to the way in which the eggs of these Phyllopods' 
Reta their vitality when transported in mud adhering to the feet of aquatic 
virds. 
Dr. J. Shirley, F.M.S., exhibited a flowering specimen of Ginkgo biloba, 1, 
showing male cones or rather catkins. This tree has leaves like the fronds of 
the maiden-hair fern, and so has been called the maiden-hair tree. A synonym is 
Salisburia adianticfolia. It is a native of Eastern Asia, and may be found 
planted about Buddhist temples in China and Japan. Recently it has been 
stated that its true habitat is in one of the ranges of BE. China. Like plants 
of the order Cycadaceew, it is remarkable for producing spermatozoids, by which 
the ovules of the female cone are fertilized. The fruit is nut-like, one-seeded, 
and edible. y 
Ten fossil plants, belonging to» Gingkoales, have been reported from the’ 
Ipswich Beds of Denmark Hill, Queensland. Four are species of Ginkgo, and 
four belong to Baiera, and two are classified under Stachopitys. 
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