The Proceedings of the Iowa Academy of Science, Volume 13Iowa Academy of Science, 1906 - Science List of members in each volume. |
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3-celled Abundant in fields Abundant in woods Academy of Sciences anthers artery Barnes Bessey bloom bracts branches Britton bromic acid bromine canadensis capsule carotid cells chloric acid Cratty Davenport Academy deposits diameter dunes esker eyespot Fayette Fayette county feet Fink Fitzpatrick Flora of Iowa flowers fungus Hardin county inches long Iowa Academy Iowa City Iowan leaves lichens limestone lines long loess Michx Minnesota Missouri forests Missouri river Moines moist Muhl Muscatine counties mycelium Nebraska Nutt oblong occurs ocelli Oscar Fulton's Ovary ovate Pammel perianth perianth-segments Peridermium Pinus plants Plenty in woods plexus port Academy prairies precipitation Professor Pursh Rare reported the species Reppert and Miller rich woods rootstocks sand seeds shale slender soil specimens spores stamens stem Story county streams swamps T. J. and M. F. L. T. J. Proceedings thickets tion trees Type locality usually waste places Welsh Willd writer xerophytic
Popular passages
Page 273 - Thus rats and bats have, no doubt, had much to do with the continuance of land life in th« cave, and the mammals of the post-pliocene or earlier period, which first wandered and dwelt in its shades were introducers of a permanent land life. As to the small crustaceans, little food is necessary to support their small economy, but even that little might be thought to be, wanting, as we observe the clearness and limpidity of the water in which they dwell. Nevertheless the fact that some cave waters...
Page 11 - Notwithstanding the laudable efforts of a few gentlemen," he says, "to excite some taste for mineralogy, so little had been effected in forming collections, in kindling curiosity and diffusing information, that only fifteen years since (1803), it was a matter of extreme difficulty to obtain among ourselves even the names of the most common stones and minerals; and one might inquire earnestly and long before he could find any one to identify even quartz, feldspar or hornblende among the simple minerals,...
Page 274 - ... we observe the clearness and limpidity of the water in which they dwell. Nevertheless the fact that some cave waters communicate with outside streams is a sufficient indication of the presence of vegetable life and vegetable debris in variable quantities at different times. Minute fresh water algae no doubt occur there, the spores being brought in by external communication, while remains of larger forms, as confervas, etc., would occur plentifully after floods.
Page 5 - That from and after the first of July, 1908, all the departments of the Government of the United States, in the transaction of business requiring the use of weight and measurement, shall employ and use the weights and measures of the Metric System.
Page 124 - B. Bulletin of the Laboratory of Natural History; The State University of Iowa, vol. 3, part 2, p. 213, 1896. Fitzpatrick, TJ and MFL Proceedings of the Iowa Academy of Sciences, vol. 5, 1897, p. 166. 1898. Gow, James E. Proceedings of the Iowa Academy of. Sciences, vol. 8, 1900, p. 159, 1901. 3. VERATRUM L. Sp. PI. 1044. 1753.
Page 213 - ... the beach grass planting demonstrates that it can be relied on to hold down the sand and prevent the movement that has endangered the forest growth, and which without restraint might ultimately threaten the town. It is obvious that the work of planting with beach grass •must be first, and then that must be followed up by planting shrubs and trees of rapid growth, interspersed with those of slow growth, before the labor of planting shall be completed.
Page 245 - ... hemispheres into the ventricles. The arachnoid is not supposed to be present, although the plexus is but a fringe of the velum interpositum, into the structure of which the arachnoid does enter. The neural wall is of course preserved, but consists only of a simple epithelium. The plexuses then are thin laminae covered with an epithelium, beneath which is a connective tissue stroma containing an extraordinarily rich network of blood vessels. In many animals, the laminae are smooth, but in others,...
Page 209 - The laws which govern the formation of dunes are substantially these. We have seen that, under certain conditions, sand is accumulated above high- water mark on low sea and lake shores. So long as the sand is kept wet by the spray or by capillary attraction, it is not disturbed by air-currents, but as soon as the waves retire sufficiently to allow it to dry, it becomes the sport of the wind, and is driven up the gently sloping beach until it is arrested by stones, vegetables, or other obstructions,...
Page 161 - Gabriel truly is near thee ; for not far away to the southward. On the banks of the Teche, are the towns of St. Maur and St Martin. Beautiful is the land with its prairies and forests of fruit trees. Under the feet a garden of flowers ; and the bluest of heavens Bending above, and resting its dome on the walls of the forest. They who dwell there have named it the Eden of Louisiana — she 'arose and continued her journey.
Page 161 - As when, after a storm, a gust of wind through the tree-tops Shakes down the rattling rain in a crystal shower on the branches. With such a prelude as this, and hearts that throbbed with emotion, Slowly they entered the Teche, where it flows through the green Opelousas...