Hopewellian in Minnesota

1944 ◽  
Vol 9 (3) ◽  
pp. 336-336 ◽  
Author(s):  
John Bennett
Keyword(s):  
Lake Michigan ◽  
Early Report ◽  
The State ◽  
Recent Synthesis

The recent synthesis of Minnesota archaeology by Wilford has revealed the presence of Hopewellian-like materials in the northern part of the state. These seem thoroughly blended with “Lake Michigan” Woodland traits and may represent the feathering out of the Hopewellian complex and its integration into existing Woodland manifestations.None of the “spectacular” Hopewellian traits are present in the Laurel and Arvilla foci, however, and it is doubtful if they can be properly called “Hopewellian.” In this connection I believe it may be of interest to note an early report of excavations at St. Paul, Minnesota, by T. H. Lewis.

scholarly journals EROSION ALONG THE ILLINOIS SHORE OF LAKE MICHIGAN

2000 ◽  
Vol 1 (2) ◽  
pp. 14
Author(s):  
Thomas B. Casey
Keyword(s):  
Great Lakes ◽  
Fresh Water ◽  
Lake Michigan ◽  
State Level ◽  
Coastal Engineering ◽  
The State ◽  
Beach Erosion ◽  
Focus Attention ◽  
Shore Line ◽  
The Many

In the consideration of problems of coastal engineering in general, and of shore and beach erosion in particular, one is quite naturally apt to immediately focus attention upon our ocean shores to the exclusion of inland areas. Many are perhaps not appreciative of the fact that the five inland fresh-water lakes comprising the Great Lakes system are bordered by eight states having a combined length of shore line of approximately 3,000 miles. (See Fig. 1) Only in recent years has there been a general awakening of interest in the many and varied problems of erosion which occur along these inland coasts. The purpose of this paper is to summarize the problems existing on the Illinois shore and to outline the steps which have been taken at the State level in seeking a solution to those problems.

THE BUTTERFLIES OF GRAND RAPIDS, MICH

1893 ◽  
Vol 25 (4) ◽  
pp. 98-107 ◽  
Author(s):  
Robt. H. Wolcott
Keyword(s):  
Lake Michigan ◽  
The State ◽  
Small Lakes ◽  
Grand Rapids ◽  
The Way

Grand Rapids, Michigan, is situated in the western part of the State, thirty miles from Lake Michigan, in N. lat. 42° 58′, in W. long. 85° 40′, with an altitude of between 600 and 700 feet. The underlying formation, outcropping in the bed of the river, is the subcarboniferous limestone, and the soil is for the most part a sandy or gravelly loam. The surface of the surronding country is rolling and diversified by numerous small lakes, with tamarack swamps and peat bods scattered here and there. The timber is mainly hard wood, but now and then an aged, solitary, pine or a group of younger pines in an out-of-the-way nook reminds us of the fact that we are within the limits of the pine region, while much of the land formerly covered by pine is now occupied by a growth of low oak scrub.

scholarly journals SOME CHARACTERISTICS OF BOTTOM SEDIMENTS ALONG THE ILLINOIS SHORE LINE OF LAKE MICHIGAN

2000 ◽  
Vol 1 (4) ◽  
pp. 7
Author(s):  
R. O. Fisher
Keyword(s):  
Long Range ◽  
Bottom Sediments ◽  
Lake Michigan ◽  
The State ◽  
Erosion Process ◽  
Shore Line ◽  
Meteorologic Factors ◽  
Range Study ◽  
Shore Erosion

The State of Illinois is engaged in a long range study of shore erosion phenomena along the Illinois shore of Lake Michigan in order to obtain more definite information on the numerous engineering, geologic and meteorologic factors involved in the erosion process.

scholarly journals Studies of the food of Fresh Water Fishes

2019 ◽  
Vol 2 (1-8) ◽  
pp. 433-473 ◽  
Author(s):  
Stephen A. Forbes
Keyword(s):  
Great Lakes ◽  
Fresh Water ◽  
Lake Michigan ◽  
Single Species ◽  
The State ◽  
Shallow Waters ◽  
River Systems

The cod family is represented in Illinois by only a single species, the burbot (Lota maculosa), occurring in the interior of Lake Michigan, and making its way at irregular intervals to the shallow waters within the reach of ordinary fishing operations. Since the opening of canals between the Great Lakes and the river systems of the State, occasional specimens have been taken in the Illinois and Mississippi. Its predaceous character is too well known to make special description of its alimentary structures necessary. It is reported by Mr. G. Brown Goode to feed upon various small fishes and Crustacea which frequent the bottom, devouring more particularly fishes with habits like its own. It is extremely voracious, with a wonderfully distensible stomach; and not only captures the most active fishes, such as the pike, but will eat carrion, and may even swallow stones. It is reported to be nocturnal in habit, and often to secure its prey by stealth.

III.—Notes on the Surface Geology of a Part of the Mississippi Valley

1879 ◽  
Vol 6 (8) ◽  
pp. 353-361
Author(s):  
W. J. McGee
Keyword(s):  
Lake Michigan ◽  
American Association ◽  
The State ◽  
Mississippi Valley ◽  
Similar Nature ◽  
North Eastern ◽  
Northern Portion ◽  
General Section ◽  
Surface Geology ◽  
Made In

A somewhat detailed description of the surface deposits of North-eastern Iowa, with references to observations of a similar nature in other localities, and some general conclusions, was read by the author before the American Association at its St. Louis meeting, and is printed in the Proceedings for 1878. Since the preparation of that paper additional observations have been made in the same region; and some other localities, mainly in the State of Illinois, have been visited. A general section has been made across the northern portion of this State, from the Mississippi on the west to Lake Michigan on this east, at about 42° N. lat. A like section has been made the greater part of the length of the State from north to south, at about long. 89° W. from Greenwich. The data employed in the construction of these sections were chiefly derived from personal observations on the surface, in channels of erosion, and in artificial excavations on the surface, in channels of erosion, and in artificial excavations; but use has also been made of observations of other persons, collected by means of extensive inquiries from, and correspondence with, local geologists and others. In Iowa a formation, believed to be distinct from any previously described, has been discovered, and a rather anomalous distribution of the member considered to be the equivalent of the loess has been brought to light. Several åsar, which seem to be homologous with those of Scandinavia, have also been traced over some distance.

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

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