CHAPTEK XVII. 



"Various Effects of Light on Scenery— Ode to Light— The Sabella 

 — Its Tube — Its Crown of Plumes — Fatal Attack — Discovery 

 of more Specimens — Laborious Mode of Procuring them — 

 The Young — Reproduction of the Crown — The Corynactis — 

 A low Spring-tide — The Tunnel Hocks — Discovery of the 

 Species — Its Form, Structure, and Colours — Manner of taking 

 Pood — ^Thread- Capsules — Their elaborate Structure — Propul- 

 sion of the Thread — Identification of the Species — The Pur- 

 ple-spotted Anemone — Its Locality and Manners — Its Form 

 and Colours — Thread- Capsules — Nature of these Organs — 

 Systematic List of Zoophytes — Conclusion. 



LIGHT. 



How much of the charm of scenery depends upon 

 an element, which, if we have never accustomed 

 ourselves to analyse our sensations and the causes of 

 them, we may he apt to overlook, or at least not 

 consciously recognise ! I mean the diversity that is 

 produced hy the different degrees and comhinations 

 of hght and shadow. How different the same scene 

 looks at different times of the day, and in different 

 states of the weather ! The edge of a grove in full 

 foliage, when looked at on a cloudy day, is not at all 

 the same thing as when the sun-light falls slantingly 

 on it, bringing out masses of rich bright green, and 

 throwing intervals into hlack shade. There is the 



