with descriptions of several of the objects which cause it. 429 



1846. 1847. 1848. 1849. 



April. Acalephae, exuviae Acalephae, Beroe, 



of Balani and small Crustaceans 



Crustaceans. such as Polyphe- 



mi, &c. 



May. Acalephae, Beroe, Acalephae, Beroe, 



&c. &c. Zoea, Polyphemi 



abundant, and 

 other rainuteCrus- 

 taceans. 



June. Acalephae, 



Beroe, &c. 



July. Vol vox abundant. Acalephae, Diphy- 



diae, Cyclops, Vol- 

 vox, &c., most 

 abundant. 



Aug. Minute Anne- Volvox abundant. Crustaceans, Anne- 



lides, Gemmae lides, Acalephae, 



of Polyps. &c., of various 



kinds, abundant. 



Sept. Gemmae of Polyps 



and Cyclops abun- 

 dant. 



Oct. Exuviae of Balani Crustaceans of va- 



abundant. rious kinds abun- 



dant. Diphydiae, 

 Acalephae, &c. &c., 

 plentiful. 



Nov. Ditto with mi- All as above with 



nute Acalephae, others. 



Beroe, &c., ab- 

 ' undant. 



Dec. Crustaceans not Opossum shrimps 



uncommon. abundant. 



Number of times when the weather has changed suddenly from fine to 

 wet with gales of wind, heavy surf, and at times tempestuous with thunder 

 and lightning after unusually luminous displays : — 



1846, 1; 1847, 9; 1848, 13; 1849, 19: 

 './hen it continued fine : — 



1847,2; 1848,4; 1849,3. 



List of objects observed. 



Gasteropoda Young of Eolis. 



Tunic ATA Tadpole of a Cjnthia. 



CiRRHOPODA Exuviae, and young of. 



Crustacea Opossum shrimp, Zoea, Oniscus coeruleus, Poly- 

 phemus, Cyclops, Cypris, &c. 



Annelid^e Two varieties of small swimming ones. 



ZooPHYTA Probably Gemmae of Laomedea and Campanularia. 



AcALEPH^ Willsia stellata, Saphenia dinema, Sarsia prolifera, 



Thaumantias octona, Thaumantias inconspicua, Thaumantias lucifera, 

 Bougainvillia nigritella, Lizzia blondina, Lizzia octopunctata, Steen- 

 strupia rubra ; Beroe, two varieties ; a number of other forms, the young 

 of the above ; Diphydiae, new to the British coasts, two varieties. 



Volvox Two varieties ; 



and minute jointed Algae. 



