The Popular Science Review: A Quarterly Miscellany of Entertaining and Instructive Articles on Scientific Subjects, Volume 12James Samuelson, Henry Lawson, William Sweetland Dallas Robert Hardwicke, 1873 |
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Página 31
... Professor Jukes has remarked , " You may sometimes toss up ' which is cleavage and bedding and jointing . " The dip of the beds , the direction of which is marked by arrows on the map , is of the greatest importance in mapping ...
... Professor Jukes has remarked , " You may sometimes toss up ' which is cleavage and bedding and jointing . " The dip of the beds , the direction of which is marked by arrows on the map , is of the greatest importance in mapping ...
Página 34
... Professor Geikie , disappear in about 4,000,000 years ! What use , then , will our geological maps be ? However , if we have thrown any light upon them , and pointed out some of their uses , so that they may be more fully appre- ciated ...
... Professor Geikie , disappear in about 4,000,000 years ! What use , then , will our geological maps be ? However , if we have thrown any light upon them , and pointed out some of their uses , so that they may be more fully appre- ciated ...
Página 43
... Professor Hoffman of Giessen , and they are of such interest that we introduce here a very condensed account of them taken from the pages of " The Gardener's Chronicle , " 1870 , p . 664 : - In a previous set of experiments the Giessen ...
... Professor Hoffman of Giessen , and they are of such interest that we introduce here a very condensed account of them taken from the pages of " The Gardener's Chronicle , " 1870 , p . 664 : - In a previous set of experiments the Giessen ...
Página 44
... Professor Hoffman that low - growing plants , especially if annuals , disappeared rapidly , while taller - growing plants , such as couch , Prunus Padus , & c . , survived . The survival of certain plants , then— couch , Aster ...
... Professor Hoffman that low - growing plants , especially if annuals , disappeared rapidly , while taller - growing plants , such as couch , Prunus Padus , & c . , survived . The survival of certain plants , then— couch , Aster ...
Página 45
... Professor Hoffman's experiments that , but for the continual use of the hoe , and the diligent extirpation of the weeds in our fields , the stronger growing ones would not only destroy our crops , but also other weeds less vigorous than ...
... Professor Hoffman's experiments that , but for the continual use of the hoe , and the diligent extirpation of the weeds in our fields , the stronger growing ones would not only destroy our crops , but also other weeds less vigorous than ...
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