-6 4 



Liburnia, genus 2 4 6 



arvensis Fitch, note on 2 4 8 



campestris Van D., described 2 54 



consimilis \'an D., described 2 4Q 



detecta Van D., described 2 48 



foveata Van D., described 2 57 



furcata Prov., note on 2 48 



Gilletti Van D., descrihed 2 58 



incerta Van I)., desenbed 2 58 



Kilmani Van I)., described 253 



laminalis Van I)., described 2 5 l 



lateralis Van D., de.-cribed 2 53 



lineatipes Van L)., described • 255 



lutulenta Van D., described 252 



obscurella Boh., note on 2 5 2 



occlusa Van D., described 256 



ornata Stal, note on 2 47 



Osborni Van D., described 250 



pellucida Fabr., note on 247 



pnella Van D., described 250 



Weedi Van D., described 252 



Lumbricus terrestris the Host of the Gape Worm of Fowls,....'. 47 



Megamelus, genus, 2 33 



Davisi Van D., described 235 



marginatus Van D., described 2 34 



notulus Germ., note on 233 



piceus Van D., described 234 



Meycnia crateriformis Potts, note on 103 



Everetti Mills, note on 103 



fluviatilis Potts, note on 102 



Leidyi Carter, note on 103 



Millsii Potts, note on 103 



Mulleri Lieb.. note on 103 



plumosa var Palmeri Potts, note on 103 



Mills, Henry: Collection of Fresh- Water Sponges, Notes on. By 



/>. S. Kellicott 99 



Niagara Shales, New Genera and Species of Fossils from. By 



E ugene N. S. Ringueberg 5 



Nidification of Birds on the St. Clair Flats. By Rev./. H. Latigillc 33 



Nonagria subcarnea Kellicott, described 40 



obliquata, note on jo 



Onandaga Salt Group, Thickness of at Buffalo, N. V 97 



Palaeoniscus antiquus Williams, described 84 



reticulatus Williams, described 83 



Pendulum and its Laws of Oscillation. By A . M . Edwards 217 



IVntagramma new genus, characterized 260 



vitatifrons Uhler, note on 260 



