Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 68American Philosophical Society, 1929 |
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Сторінка 14
... rock flora of the region investigated by Oettli with reference to its geographical position , petrography , climatology and the rock plants as they form associations . Three pages are devoted to the plants of talus slopes . The second ...
... rock flora of the region investigated by Oettli with reference to its geographical position , petrography , climatology and the rock plants as they form associations . Three pages are devoted to the plants of talus slopes . The second ...
Сторінка 16
... rock fragments ( 2 cm . to 2 mm . in diameter ) , sand and clay . These elements are used in a geomorphological discussion of the environment . Then follows an arrangement of the plants of the rock formations and a description of their ...
... rock fragments ( 2 cm . to 2 mm . in diameter ) , sand and clay . These elements are used in a geomorphological discussion of the environment . Then follows an arrangement of the plants of the rock formations and a description of their ...
Сторінка 20
... rock slides in Glacier National Park . Its hairy , one - flowered , fruiting stem was 20 centimeters tall . Lupinus Lyallii Gray was found among loose rocks on Mt. Rainier at 7,000 feet in full flower on July 10 , 1926. It formed dense ...
... rock slides in Glacier National Park . Its hairy , one - flowered , fruiting stem was 20 centimeters tall . Lupinus Lyallii Gray was found among loose rocks on Mt. Rainier at 7,000 feet in full flower on July 10 , 1926. It formed dense ...
Зміст
Mans Future in the Light of His Past and Present By ALEŠ | 1 |
The Vegetation of the Screes or Talus Slopes of Western North | 13 |
Saxifraga Tolmiei Torr Gray a screecoverer | 20 |
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