ScienceJohn Michels (Journalist) 1943 |
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Page 90
... species growing near or below low tide are large and can be collected rapidly but only for a short time each day , while the species of the intertidal zone take more time to col- lect , but more time is available . The yield of agar ...
... species growing near or below low tide are large and can be collected rapidly but only for a short time each day , while the species of the intertidal zone take more time to col- lect , but more time is available . The yield of agar ...
Page 332
... species . Of these there are 3 new sub- families , 2 new genera and 14 new species . They were collected at 160 stations on the Pacific and Atlantic Oceans . Four general regions are recognized . The Heterodontid Sharks : Their Natural ...
... species . Of these there are 3 new sub- families , 2 new genera and 14 new species . They were collected at 160 stations on the Pacific and Atlantic Oceans . Four general regions are recognized . The Heterodontid Sharks : Their Natural ...
Page 425
... species , " for the definition depends upon the de- gree of our knowledge of the group , but he endeavors to reach it by framing definitions of the " practical species concept , " the " morphological concept , " the " genetic species ...
... species , " for the definition depends upon the de- gree of our knowledge of the group , but he endeavors to reach it by framing definitions of the " practical species concept , " the " morphological concept , " the " genetic species ...
Contents
VOL | 1 |
CASE G W Engineering Colleges and War 79 | 10 |
Health Service A SEIDELL | 14 |
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