THE 



PHYSIOLOGY 



OF 



THE INVERTEBRATA 



V r -. BY 



A^. B? (^RIFFITHS, Ph.D., F.R.S. (Edin.), F.C.S. 



MEMBRE DE LA SOCIETE CHIMIQUE DE PARIS ; MEMBER OF TKE 

 PHYSICO-CHEMICAL SOCIETY OF ST. PETERSBURG 



AUTHOR OF 



"RESEARCHES ON MICRO-ORGANISMS" "THE DISEASES OF CROPS," 

 ETC. ETC. 



LONDON 

 L. REEVE AND CO. 



S HENRIETTA STREET, COVENT GARDEN, W.C. 



1892 



\_Allrigkis resented] 



