| PLATE | PAGE |
| A Sunset Sky | Frontispiece |
| 1. | Part of a Great Halo | 22 |
| 2. | Part of a Solar Halo | 23 |
| 3. | Cirro-nebula changing to Cirro-stratus | 24 |
| 4. | Cirro-nebula changing to Cirro-cumulus | 27 |
| 5. | High Cirrus. (Cirrus Excelsus) | 31 |
| 6. | Windy Cirrus. (Cirrus Ventosus) | 32 |
| 7. | Thread Cirrus. (Cirro-filum) | 34 |
| 8. | Tailed Cirrus. (Cirrus Caudatus) | 35 |
| 9. | Hazy Cirrus. (Cirrus Nebulosus) | 36 |
| 10. | Change Cirrus. (Cirrus Inconstans) | 37 |
| 11. | Common Cirrus. (Cirrus Communis) | 40 |
| 12. | Band Cirrus. (Cirrus Vittatus) | 41 |
| 13. | Band Cirrus. (Cirrus Vittatus) | 42 |
| 14. | Hazy Cirro-stratus. (Cirro-stratus Nebulosus) | 46 |
| 15. | Cirro-stratus | 47 |
| 16. | Cirro-stratus. (Cirro-stratus Communis) | 48 |
| 17. | Flocculent Cirro-stratus. (Cirro-stratus Cumulosus) | 49 |
| 18. | Cirro-stratus and Cirro-cumulus | 50 |
| 19. | Cirro-cumulus | 50 |
| 20. | Hazy Cirro-cumulus. (Cirro-cumulus Nebulosus) | 51 |
| 21. | Hazy Cirro-cumulus. (Cirro-cumulus Nebulosus) | 51 |
| 22. | A Sunset Sky | 52 |
| 23. | Speckle Cloud (Ley). (Cirro-macula) | 53 |
| 24. | Cirrus Caudatus and Cirro-macula | 55 |
| 25. | Alto-cumulus Informis | 64 |
| 26. | Hazy Alto-cumulus. (Alto-cumulus Nebulosus) | 65 |
| 27. | Flat Alto-cumulus. (Alto-cumulus Stratiformis) | 65 |
| 28. | High Turreted Cloud. (Alto-cumulus Castellatus) | 66 |
| 29. | High Ball Cumulus. (Alto-cumulus Glomeratus) | 67 |
| 30. | Mackerel Sky. (Alto-stratus Maculosus) | 68 |
| 31. | Mackerel Sky. (Alto-stratus Maculosus) | 69 |
| 32. | Alto-strato-cumulus |
CLOUD STUDIES
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