6 CONTENTS. 



The Ecological Relations of the Orthoptera in the 'Porcupine Mountains, Michigan, 



by Albert Pitts Morse, Research Assistant, Carnegie Institution of Washington 68 



1. General Remarks 68 



2. Station List 69 



3. Systematic List of Orthoptera 71 



ANNOTATED LISTS. 



List of Stations in the Porcupine Mountains 74 



List of Stations on Isle Royale 74 



Notes on the Plants of the Porcupine Mountains and Isle Royale, Michigan, by A. 



G. Ruthven 75 



1. Porcupine Mountains 75 



2. Isle Royale 86 



Annotated List of Molluscs of the Porcupine Mountains and Isle Royale, Michigan, 



by Bryant Walker and A. G. Ruthven 93 



1. Porcupine Mountains 93 



2. Isle Royale 96 



Spiders and Insects from the Porcupine Mountains and Isle Royale, Michigan, by 



A. G. Ruthven. 100 



1. Spiders from the Porcupine Mountains 100 



2. Spiders from Isle Royale 100 



3. Dragonflies from the Porcupine Mountains 101 



4. Butterflies and Moths from the Porcupine Mountains and Isle Royale 102 



a. Porcupine mountains 102 



b. Isle Royale 103 



c. Notes on the Collection of Butterflies, by Prof. A. J. Snyder 103 



5. Ants from the Porcupine Mountains . 104 



6. Ants from Isle Royale 105 



The Cold-blooded Vertebrates of the Porcupine Mountains and Isle Royale, Michi- 

 gan, by A. G. Ruthven 107 



1. Fish of the Porcupine Mounta ns 107 



2. Fish from Isle Royale 108 



3. The Amphibians of the Northern Peninsula 109 



4. The Reptiles of Northern Michigan ' 110 



Annotated List of the Birds of the Porcupine Mountains and Isle Royale, Michigan, 



by N. A. Wood, Max M. Peet and O. McCreary 113 



1. Porcupine Mountains 113 



2. Isle Royale 121 



Notes on the Mammals of the Porcupine Mountains and Isle Royale, Michigan, 



by Chas. C. Adams 128 



1. Porcupine Mountains 128 



2 Isle Royale 131 



