WIXCKWORTII : . OX BEROn 



21 



A proper and sufTicicnt rcferenoe tlicreroroshrmlflgivo tlu' voliu.ic-(2, 7 or9)and pago, 

 adriiiig Siippl aftcr 2 in tlie case of Tlioil. 4. Tlius : 



Bcrgh, R. 1871. Scmprys Rasen, 2, 309-314. . 

 Bcrgh, R. 1S80. Scinijcr's Heiscn, 2 Smtpl 21. 

 Bergh, R. 100.5. Sempcr's IieJsen,Q, G'J. 

 If furtlicr detail is rcqiiircd tlie numljcr of the Heft mav bo addcd betwccn vohimo 

 and pngc : Bcrgb, R. 1S76. Make. Uiit. .9cmj)fr's i?ei'scit, 2, Hoft 10, 413. 



The dates of publication, as far as I liave traced thcm, are given below. 

 Up to 1878, the dates are tliose giveii by Bergli in part 14, pago xlii ; 

 the dates for the fir.st three parts of volume 7 are given ou pnge 158 of that 

 volume ; the other dates are dates of receipt at the British Museum 

 (Natural Hi.story). 



Semper's Reisen, volume 2 — Malacologischc Untersucliungcu 



HC 





