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Articles 121 - 136 of 136
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The Relation Of The Smaller Forest Areas In Non-Forested Regions To Evaporation And Movement Of Soil Water, Irwin T. Bode
The Relation Of The Smaller Forest Areas In Non-Forested Regions To Evaporation And Movement Of Soil Water, Irwin T. Bode
Proceedings of the Iowa Academy of Science
The importance of the climatic and edaphic relations of forests has been the basis for wide discussion and study. The scope of this field is shown in a condensed way in a report of the Sub-Committee on Forest Investigations to the Fifth National Conservation Congress, which discusses studies undertaken up to the time of the report (1913) and presents in general results obtained. Recently, Zon, in a paper, "Forests and Water in the Light of Scientific Investigation," has presented a much more comprehensive view of the subject and the literature. He has attempted to bring together "all the well-established scientific …
An Ecological Study Of Dry Run, A Typical Prairie Stream, Laurence Palmer
An Ecological Study Of Dry Run, A Typical Prairie Stream, Laurence Palmer
Proceedings of the Iowa Academy of Science
Dry Run, a tributary of Cedar River in Black Hawk County, Iowa, furnishes an excellent unit for studying the ecology of a prairie stream. It is rather exceptional in that for a greater portion of the year a natural barrier is formed where the stream flows underground for the last two miles of its course. This study is concerned only with the west branch which joins a brook of similar size near the grounds of the Cedar Valley Fair Association. While this paper deals only with a description of the creek and the distribution of its fish inhabitants, it is …
Cumulative Index, Volumes I To Xxv, 1887-1918
Cumulative Index, Volumes I To Xxv, 1887-1918
Proceedings of the Iowa Academy of Science
No abstract provided.
Plant Studies In Lyon County, Iowa, D. H. Boot
Plant Studies In Lyon County, Iowa, D. H. Boot
Proceedings of the Iowa Academy of Science
The subject of this paper is one of a series of ecological studies carried on by the author during the last few years, and is a study of a part of the region, consisting chiefly of high prairie, in the northwestern part of the state, the tract considered covering a part of the southwest corner of Lyon County, which is the northwesternmost county in Iowa.
Weed Survey Of Story County, Iowa, L. H. Pammel, Charlotte M. King
Weed Survey Of Story County, Iowa, L. H. Pammel, Charlotte M. King
Proceedings of the Iowa Academy of Science
The matter of the distribution of weeds is one of interest, not only to the phytogeographer, but to the farmer and horticulturist as well. Our alien flora, though Iowa is not an old state, is a large one. In 1879 Dr. Gray prepared a list of the predominant weeds of Eastern North America. In a discussion of weed migration in The Weed Flora of Iowa, I made a comparison of weeds and alien plants in Iowa. In counting the weeds of Iowa I find that 172 of that list occur in Iowa. This list can be augmented by the addition …
Twenty-Five Years Of Botany In Iowa, Thomas H. Macbride
Twenty-Five Years Of Botany In Iowa, Thomas H. Macbride
Proceedings of the Iowa Academy of Science
To tell of Botany in Iowa for twenty-five years, even as presented in the work of members of this Academy, is a task far more difficult than would at first appear. Shall I present a list of all Iowa botany papers for a quarter of a century; such list would mean much indeed, and such list so far as attainable may be found as an appendix to the present paper. But the slightest reflection suggests that such list, long or short, is, as a matter of fact, no measure whatever of either the industry or the achievements of those who …
An Ecological Study Of A Prairie Province In Central Iowa, Ada Hayden
An Ecological Study Of A Prairie Province In Central Iowa, Ada Hayden
Proceedings of the Iowa Academy of Science
This virgin prairie area is mostly of the kame hill, saucer type. One portion of the territory is probably the pre-Wisconsin bed of the Des Moines River whose course was changed by the ice sheet. The region examined in detail is one mile in radius and bordered by a woodland adjacent to Skunk River.
Floristic Notes From An Illinois Esker, Bruce Fink
Floristic Notes From An Illinois Esker, Bruce Fink
Proceedings of the Iowa Academy of Science
Kaneville is a village in Kane County, Illinois, and is situated about fourteen miles from Aurora, Illinois, west by a few degrees north. At Kaneville, the present writer passed several years of his boyhood and early youth, and here it was that he took his first lessons in natural science, learning the names and habits of a considerable number of birds and plants and gaining some inklings of the interesting mysteries of geological science.
Proceedings Of The Nineteenth Annual Session Of The Iowa Academy Of Sciences: Staff & Committee Reports, T. E. Savage
Proceedings Of The Nineteenth Annual Session Of The Iowa Academy Of Sciences: Staff & Committee Reports, T. E. Savage
Proceedings of the Iowa Academy of Science
No abstract provided.
An Ecological Study Of The Sabine And Neches Valleys, Texas, James E. Gow
An Ecological Study Of The Sabine And Neches Valleys, Texas, James E. Gow
Proceedings of the Iowa Academy of Science
During the winter of 1902-3, and again during the winter of 1903-4, the writer was one of a party sent by the United States Bureau of Forestry to take stem analysis and valuation surveys on the holdings of the Kirby Lumber Company preparatory to making a working plan for the use of the company in the future treatment of its timber lands. The holdings of this company lie in Hardin, Orange, Newton, Jasper, Angelina, Sabine and San Augustine counties, and include the largest continuous area of virgin Longleaf pine existing in the United States at the present time. Incidentally to …
Presidential Address - Two Centuries Of North American Lichenology, Bruce Fink
Presidential Address - Two Centuries Of North American Lichenology, Bruce Fink
Proceedings of the Iowa Academy of Science
Surely no apology is in order for offering here an address in which attention is directed for the short time to a limited field in one of the biological sciences. All men of science are interested to some extent in the history of the rise and progress of every phase of scientific inquiry, and even for the layman who may favor us with his presence this evening, it is hoped that the record of devotion, sacrifice and completion of valuable work will afford something of interest.