133 OYSTERS, AND ALL ABOUT THEM. 



562; progress of rearing same, 1873, at > 5^2; rearing, fattening, 



and reproduction principally carried on at, 562. 

 Olivette, 172. 



Oolite rocks, 213. Egg rocks or stones. 



Operculum, 158. The plate or lid which closes the orifice of a shell. 

 Ophiocoma, 229. 

 Ophiura, 229. 

 Oporto (oysters) 333, 334 ; direct, 334 ; not the same as the Tagus 



Portuguese, 334. 

 Oppian, Halieutica, cited 224. 

 Grata, Sergius, 36, 40, 41, 42, 43, 56, 663. 

 Orkneys, The, 166. 

 Oribasius, 36. 

 Oro, The river, 666. 

 Osbome, The Manor of, 261. 

 Osmazoue, 494 (odour of broth, an alcoholic extract obtained from 



muscular fibre, brain, &c.) 

 Ossian, 188. 



Ossification, 65. (The formation of bone.) 

 Ostend, 270, 271, 272, 274, 545, 603. 

 Osteology, 197. (The study of bones.) 

 Ostra blanca (Ostrea edulis) 381. 

 Ostra vermella (or vermeya) 304. 

 Ostione (Ostrea Virginica) 381. 

 Ostracism, 35. 



Ostricultural Union, Establishment of the, 573. 

 Ostras Guisadas. (Spanish recipe) 293. 

 a la Pollada, 295. 

 en Concha, 298. 

 en Escabechados, 302 

 Ostrearum patina, 283. 

 Ostrearius panis, 283. 



Ostrea or Ostrias. (In the Guadalete) 381. 

 Ostrea, 64, 590. 

 Ostrea Genus, Linnaeus, 150, 161 ; general form veiy inconstant and 



often irregular, 151; Habitat, 152, 153, 154; misnamed Peloris, 



151 ; so called species of, exceedingly numerous, 150. 

 Adriatica, 126. 



