310. Map of the ice masses of Victoria Land, Antarctica 282
311. Sections across the inland ice and the shelf ice of Antarctica 283
312. Diagram to show the nature of the fixed glacial anticyclone above continental glaciers 284
313. Snow deltas about the margins of a glacier tongue in Greenland 285
314. View of the sea ice of the Arctic region 286
315. Map of the north polar regions, showing the area of drift ice and the tracks of the _Jeannette_ and the _Fram_ 288
316. The shelf ice of Coats Land with surrounding pack ice 290
317. Tidewater cliff on a glacier tongue from which icebergs are born 290
318. A Greenlandic iceberg after a long journey in warm latitudes 291
319. Diagram showing one way in which northern icebergs are born from the glacier tongue 291
320. A northern iceberg surrounded by sea ice 292
321. Tabular Antarctic iceberg separating from the shelf ice 293
322. Map of the globe, showing the areas covered by continental glaciers during the “ice age” 297
323. Glaciated granite bowlder weathered out of a moraine of Permo-Carboniferous age, South Australia 298
324. Map to show the glaciated and nonglaciated regions of North America 298
325. Map of the glaciated and nonglaciated areas of northern Europe 299
326. An unstable erosion remnant characteristic of the “driftless area” 300
327. Diagram showing the manner in which a continental glacier obliterates existing valleys 301
328. Lake and marsh district in northern Wisconsin 302
329. Cross section in natural proportion of the latest North American continental glacier 303
330. Diagram showing the earlier and the later glacier records together upon the same limestone surface 304
331. Map to show the outcroppings of peculiar rock types in the region of the Great Lakes, and some localities where “drift copper” has been collected 305
332. Map of the “bowlder train” from Iron Hill, Rhode Island 306
333. Shapes and approximate natural sizes of some of the diamonds from the Great Lakes region 307
334. Glacial map of a portion of the Great Lakes region 308
336. Sketch map of portions of Michigan, Ohio, and Indiana, showing the distribution of moraines 312
337. Map of the vicinity of Devil’s Lake, Wisconsin, partly covered by the continental glacier 313