Fig. 11. Gammarus fragilis × 7. Fig. 12. " Base of flagellum of upper antenna, with the secondary appendage. Fig. 13. " Extremity of upper antenna. Fig. 14. " Mandible. Fig. 15. " Second maxilla; a b c, different forms of setæ from the same. Fig. 16. " Maxillipede. Fig. 17. " First gnathopod. Fig. 18. " Telson. Description of Plate X. Fig. 1. Cruregens fontanus × 7½. Fig. 2. " Antennæ, from above. Fig. 3. " Labrum. Fig. 4. " Mandibles. Fig. 5. " First maxilla. Fig. 6. " Second maxilla. Fig. 7. " Maxillipedes. Fig. 8. " First thoracic leg. Fig. 9. " Abdomen and telson, from above; a, last thoracic segment. Fig. 10. " Abdomen, seen from below. Fig. 11. " Appendage of first abdominal segment. Fig. 12. " Branchial plates. Fig. 13. Crangonyx compactus × 9. Fig. 14. " Antennæ. Fig. 15. " Mandibles. Fig. 16. " Maxillipede. Fig. 17. " First gnathopod. Fig. 18. " Telson. Fig. 19. " Extremity of upper antenna showing sensory setæ a.

Art. XXVI.—History of Fish Culture in New Zealand. By W. Arthur, C.E. [Read before the Otago Institute, 18th February, 1881.] Plates XII.—XIV. The experience of other countries, as France, Germany, England, and America, has demonstrated the fact, that the cultivation of water, acre for acre, can be made more profitable to a community than the cultivation of the land. Fish culture, begun as a scientific experiment in natural history, has expanded into a great national industry—and, with the exception of