C—l 3

No. 9. (1.) Effect of a Solid Obstacle. (2.) Effect of an Inflexible Open Obstacle. (3.) Effect of a Flexible Open Obstacle, such as a Bunch or Marram-crass. (After Gerhardt.)

No. 10. The Chatham Island Akeake (Olearia Traversii) planted by Mr. Tannoch on the Dunes, Ocean Beach, Dunedin.

To face -page 10.]

[Photo L. Cockayne