OcTOBEK 29. Pric^ 2s. 



THE JOURNAL 



OP 



THE LINNEAN SOCIETY. 



Vol. XL ZOOLOGY. ^^^j). 55. 



CONTENTS. "^Oi^v, "^''-V . 



I. Ou the Formation of British Pearls and their possible 



Improvement. By Eobebt GtAeneb, F.L.S 426 



II. Note on a Chinese Artichoke- Grail (mentioned and 

 figured in Dr. Hanoe's paper " On Sillcworm-Oaks ") 

 allied to^ the European Artichoke-G-all of Aphilothrix 

 gemmcs, Jjinn. By Albekt Muller, E.L.S 428 



III. Ou the Geographical Distribution of the Diurnal Lepi- 



doptera as comj)ared with that of the Birds. By W. 

 E, KiRBT, Assistant in the Museum of the Eoyal 

 Dublin Society, author of 'A Catalogue of Diurnal Le- 

 pidoptera,' &c 431 



IV. Contributions towards a Knowledge of the Curculio- 



nidao. — Part III. By PiiANCis P. Pascoe, I\L.S., 

 late Pres. Ent. Soc. (Plates X., XI., XII., XIII.)... 440 



LONDON: 



SOLD AT THE SOCIETY'S APAETMEKTS, BURLINGTON HOUSE; 



AND Br 

 LONGMANS, GEEEN, EEADEE, AND DYEE, 



AND 



WILLIAMS AND NOEGATE. 

 1872. 



