Volume 50, 1918
– x –

Miscellaneous.
| Art. II. | The Resistance to the Flow of Water through Pipes. By E. Parry, B.Sc. | 45–55 |
| XXIV. | New Zealand Ironsands: an Historical Account of an Attempt to Smelt Ironsands at Onehunga in 1883. By J. M. Chambers | 223–230 |
| XXX. | Further Notes on New Zealand Bird-song: Kapiti Island. By Johannes C. Andersen | 282–295 |
| XXXI. | Notes on Eels and Eel-weirs (Tuna and Pa-tuna). By T. W. Downes | 296–316 |
| XXXII. | On certain Tripolar Relations: Part III. By E. G. Hogg, M.A., F.R.A.S. | 317–322 |
