^ T he South Australian, Naturalist 
Anligona gallimda (Lamarck ) 7 ' ArLargi and Outer" HaTb^ 
scarce. A beautifulh^ sculptured and colored bivalve, ventral 
edges crenulated. 
Vmerupis gal adit es (Lamarck). White sliell. Found 
among the seaweed bases at Outer Harbor. 
ylmphidesma augustata (Reeve). Immense numbers on Gulf 
Beaches.^ They plough along just under the surface of wet sand 
leaving innumerable semi-circular marks. Just before the tide 
reaches them they throw themselves out of the sand. 
F. 'I'rigg, Hon. Sec. 
OUR EXCHANGES. 
1. “journal of the Arnold Arboretum” of Harvard Univ 
U.S.A. \'ol. VI. 
Motes on the Jlotany of China and various 
other countries. 
2. “Journal of the Royal Societv of Western Australia.” Vol 
XI, 1924-25. 
3. The \ictoiian Xaturahst ^ Xuntbers for November, 
December, January and February. ’ 
4. “The Queensland Mkituralist” for November. 
5. I he South Australian Ornithologist” for January. 
6. Smithsonian Reports from the Smithsonian Institu- 
tion. U.S.A. : — 
]. The Constitution and I'ivolution of the .Slar.s, 
2. 'Die Sun and Sunspots. 
3. joining the Electric Wave and Heat Spectra. 
4. jhe Possibilities of Instrumental Development. 
3. rhe Borderland of Astronomy and Geology. 
6. Atmospheric Nitrogen Fixation. 
7, The Place of Proteins in the Light of the Newer Knowledge of 
Nutrition. 
Story of the i^roduction and Lises of Ductile Tantalum. 
10. 'Fhe Composition of the Earth’s Interior. 
II . Diamond-bearing Peridotote n Pike County. Arkansas. 
12. Recent Progress and Trends in Vertebrate Paleontology. 
13. ,\nimais in the National Zoological Park. 
14. I he Burrowing Rodents of California as Agents in Soil Formation. 
15. 4'he Natural History of China. 
16. Life in the Ocean. 
17. A Study of the Flight of Seagulls. 
18. Insect Musicians their Alusic and their Instruments. 
19. Die Gardens of Ancient Mexico. 
20. ^le Hovenweep National Monument. 
21. 'Fhe Origin and .Antiquity of the .American Indian. 
22. The Anthropological Work of Ihince Albert 1 of Monaco. 
23. Ihe LTilization of \ olcanic Steam in Italy. 
24. Proposed I'idal Hydroelectric Power Development. 
25. Sir James lAcwar. F.R.S.. LL.D 
26. J. C. Kapteyn. 1851 — 1922. 
27. Julius von Hann. 
