NOTES. 



83 



become more distinctly undulatory the wave proceeding from 

 one side to the other. The elevators of the ribs on one side are 

 vigorously raising each rib in succession from the head back- 

 wards for some little distance : the retractors of the ribs on the 

 other are successively depressing them, and a sliding grasp is 

 thus brought to bear upon the substance within which becomes 

 constantly more effectual as more surface and more augulai'ities 

 are presented to it. At length the prey enters wholly within 

 the gullet : the peristaltic action has now full effect upon it and 

 it is passed rapidly down in a direct course till it reaches the 

 stomach. 



C. W. De Vis. 



TUESDAY, 10th June, 1884. 

 L. A. Bernays, Esq., F.L.S., etc., in the Chair. 



The following donations were announced : — 



1. Illustrated Catalogue of Locomotives, Baldwin Locomotive 

 Works. Philadelphia, 1881. From A. Norton, Esq. 



2. "The Midland Medical Miscellany," Vol. 3, No. 28. 

 Leicester, &c., 1884. Anon. 



3. "Atti della Societa Toscana di Scienze Naturali." Processi 

 verbali. Vol. IV. 13 gennaio, 1884. From the Society. 



4. " Bericht des Vereines fiir Naturkunde zu Cassel." XXIX. 

 und XXX. Kassel, 1883. From the Society. 



5. Proceedings of the Linnean Society of New South Wales, 

 Vol. IX., Part 1. Sydney, 1884. From the Society. 



6. " Transactions de la Societe Royale des Arts et des Sciences 

 de Maurice," Vols. XI-XIII. Mauritius, 1883. From the 

 Society. 



