The American Naturalist, Volumen21Essex Institute, 1887 |
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Página 609
... sides bent inwards so that the edges are close together . In swollen sacs on each side of the slit the pollen - grains. FIG . 1. - Flower of Asclepias enlarged . FIG 6. - Leg of beetle , with pollinia attached. 1887 ] 609 The Milkweeds .
... sides bent inwards so that the edges are close together . In swollen sacs on each side of the slit the pollen - grains. FIG . 1. - Flower of Asclepias enlarged . FIG 6. - Leg of beetle , with pollinia attached. 1887 ] 609 The Milkweeds .
Página 610
on each side of the slit the pollen - grains are found . The pe- culiar feature of these grains is that they are ... sides into the upper and narrower part of the slit , and there become fast . Feeling a de- tention , the captive will ...
on each side of the slit the pollen - grains are found . The pe- culiar feature of these grains is that they are ... sides into the upper and narrower part of the slit , and there become fast . Feeling a de- tention , the captive will ...
Página 622
... side , until the one thing is thoroughly understood in its every relation . The one object thus becomes a familiar and typical example of all the principles involved in its structure , function , or other relations . Afterwards , the ...
... side , until the one thing is thoroughly understood in its every relation . The one object thus becomes a familiar and typical example of all the principles involved in its structure , function , or other relations . Afterwards , the ...
Página 632
... 1 , 2 , and 3 the partial outlines are drawn as though taken from the bone of the right side in every case . This is for convenience . 35 ° or 40 ° in man , presents great 632 [ July Variation of the Human Shoulder - Blade .
... 1 , 2 , and 3 the partial outlines are drawn as though taken from the bone of the right side in every case . This is for convenience . 35 ° or 40 ° in man , presents great 632 [ July Variation of the Human Shoulder - Blade .
Página 641
... side of the Minnesota River , one and a half miles south of Brown's Valley , and is in Roberts County , Dak . It is oblong in form , being three and a half feet in length , two feet in width , and is firmly imbedded in the ground . Figs ...
... side of the Minnesota River , one and a half miles south of Brown's Valley , and is in Roberts County , Dak . It is oblong in form , being three and a half feet in length , two feet in width , and is firmly imbedded in the ground . Figs ...
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Amer AMERICAN NATURALIST animals appear Artiodactyla Bering Island bones botany breed called cells character chemical color compounds conclusions Condylarthra contains crystals cusps described dike E. D. Cope Eocene evolution eyes facts fauna feet figures fossils four Gard genera genus geological geologists geology Göhrde groups Heptodon hornblende hornless stags horns hundred Hyracotherium Ichthyosaurus incisors inferior molar infra-spinous insects Island J. B. LIPPINCOTT COMPANY known Lambdotherium larvæ lower Menodus mineral Miocene molars natural North notes observed occur original paper Philadelphia plane plants plates polled cattle pollinia portion premolars present probably Proc Prof Professor Protohippus published recently region represented River rocks sandstone says scapular scapular index schists scientific sea-cow sections seen side skull species specimens Spiders structure student superior molars synonymy Taconic teeth tion varieties Vilmorin XXI.-NO