HEPORT OF COMMITTEE ON PIIOTOGRArHS. 628 



118. View on Brush creek, Gunnison county, Colorado, to show the swatli cut by a 



snow-slide through a dense growth of spruce Size, 8 x 10 inches. Photo- 

 graphed by C. Whitman Cross, October 3, 1885. 



Wind Erosion. (Photographed by I. C. Russell, 1887. Size, 8 x 10 inches.) 



119. Eolian erosion in rhyolite. Mono valley, California. 



120. Sand dunes near Sleeping Bear bluff, eastern shore of Lake Michigan. 



121. Forest formerly buried beneath drifting sand and now exposed by eolian erosion. 



High part of South Manitou island, Lake Michigan. 



Topographic Features of Lake Shores, ancient and tnodern, Ontario Basin. (Photo- 

 graphed by G. K. Gilbert, 1885. Size, 4 x 4| inches.) 



122. Shore of Lake Ontario, Griffin bay. New York. The waves have excavated a 



cliff from bowlder clay, but have not been able to remove the larger bowlders. 



123. Shore of Lake Ontario, Griffin bay, New York. A barrier of shingle separates 



a lagoon from the lake. 



124. On western shore of Cayuga lake, at East Varick, New York. A delta modified 



in outline through deflection of shore currents by a projecting pier. 



125. Views of Iroquois shore, near Wolcott, New York. A sea-cliff, cut from a 



drumlin, appears just to the right of the center, and a spit i-unning to the left 

 bears a house and barn. 



126. Portion of Iroquois shore, near Wolcott, New York. The camera stands on a 



spit and is turned toward a sea-cliff cut from a drumlin. 



127. Iroquois shore, near Constantia, New York. The camera stands on a beach 



ridge of gravel. Compare modern beach in No. 123. 



128. Iroquois shore, near Pierrepont manor, New York. Excavation of till by the 



waves left a cut terrace set with large bowlders. Compare with No. 122. 



129. Iroquois shore, near Pierrepont manor. New York. Excavation of till by the 



waves left a cut terrace set with large bowlders. Compare witn No. 122. 



130. Iroquois shore, section of spit, 3 miles east of Watertown, New York. The open 



lake lay at the left, a bay at the right. The spit was accumulated by additions 

 on the landward side. 



131. Wall composed of limestone blocks rounded by wave action on an ancient shore 



of Lake Ontario, 5 miles east of Watertown, New York. 1890. 



Topographic Features of Lake Shores, Michigan and Superior. (Photographed by 

 I. C. Russell, 1887. Size, 8 x 10 inches.) 



132. Sea-cliff in limestone, Mackinaw island, Michigan. 



133. Sea-cliff in sandstone, small island near Marquette, Michigan. 



Nos. 134, 135, 139, 142, 144, 145, 147 are published by G. K. Gilbert in Fifth Ann* 

 Rep. U. S. Geol. Survey, with plate numbers as below. 



134. Sea-cliff in hard sandstone, with beach beyond, Au Train island. Lake Superior. 



PI. V. 



135. Sea-cliff in bowlder clay, with beach in foreground, South Manitou island. Lake 



Michigan. PI. III. 



136. Sea-cliff in sand, with beach, Sleeping Bear point, eastern shore of Lake 



Michigan. 



137. Sea-cliff in bowlder clay, South Manitou island. Lake Michigan. 



138. Sea-cliff in bowlder clay, North Manitou island, Lake Michigan. 



139. Beach of limestone pebbles, Mackinaw island, Michigan. PI. VII. 



140. Gravel spit, with driftwood, near Mackinaw island, Michigan. 



LXLI— Bui,r,. Gfoi,. Soc. Am., Vot.. 2, 18!M). 



