318 Miscellaneous, 



Application of the anatomical facts to the foot-prints of the New Red 

 Sandstone of Connecticut. History of the discovery and determination 

 of the Ornithichnites : exemphfied by the Brontozoum, Steropezoum, 

 OrnithopuSy and Plectropus. Eocene OrnithoHtes. Lithornis vultu- 

 rinus\ process of its determination. The sternum in birds : conditions 

 of its pecuUarities : its relations to flight ; its more constant and im- 

 portant subservience to respiration : these involve corresponding modifi- 

 cations of the scapular arch, of the ribs, and of the vertebrae of the 

 neck, sacrum, and tail. Skull ; wing-bones, femora, tibia, metatarsus, 

 and toes. Halcyornis toliapicus, Gastornis parisiensis, Protornis 

 glarisiensis, Numenius Gypsorum, Tringa Hqffmanniy Phcenicopterus 

 CroizetL The gigantic extinct wingless birds. Binornisy Palapteryx, 

 and Epyornis. The Dodo and Solitaire. 



Lectures III. and IV. {Thursday, March 25th, and , 

 Friday, March 26th.) 



Palaeozoic andTriassic Reptiles. — General characters of the 

 Class Reptilia. Characters of the existing Orders : 



1. Batrachia. 4. Chelonia. 



2. Ophidia. 5. Crocodilia. 



3. Lacertia, 



Relations of the Osseous structure to the low temperature and in- 

 active habits of reptiles. Characters of the Vertebrae of the different 

 orders of reptiles. Modifications of the Vertebral column in Batra- 

 chia, and conditions of the absence of true ribs in this order. 



Earliest known evidences of air-breathing Vertebrata. The Lepto- 

 pleuron of the Old Red Sandstone. Batrachian foot-prints in 

 American coal-measures. Batrachian fossils of equal antiquity. 

 Archegosarus, Dendrerpeton, Baphetes, Parabatrachus. Thecodont 

 lizards of the Permian limestones ; Palceosaurus. The Thuringian 

 Monitor, or Protorosaurus. Probable nature of the so-called Chei- 

 rotherian foot-prints in Triassic sandstones, and their relation to the 

 reptiles of the Labyrinth odont family. Characters and remarkable 

 dentition of that family ; its combined Batrachian and Sauroid 

 affinities ; Cladeiodon, Belodon. Reptiles of the German ' Muschel- 

 kalk,' Nothosaurus, Simosaurus, Tanystropheus, and Placodus. The 

 Rhynchosaurus of English New Red Sandstone. The Dicynodonts, 

 probably Triassic reptiles of South Africa. 



Lectures V. and VI. {Thursday, April I5th, and Friday, 

 April 16a.) 



Oolitic Reptiles. — Extinct reptiles of the Oolitic series: 

 their numbers, diversity, and formidable character. Views of the 

 classification and affinities of reptiles, as modified by the insight 

 now gained into the forms and structure of the lost orders, genera 

 and species. 



Characters of the extinct EnaUosauria. Distinctive characters of 

 the vertebrae of the Ichthyosaurus : peculiarities of the rest of its 

 skeleton ; its dentition and intes-ument. Indications of the structure 



