The Quarterly Journal, Том 20John Murray, 1826 |
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Страница v
... Lignites . By J. MAC CULLOCH , M.D. , F.R.S. , & c . ( Communicated by the Author . ) · Observations on the expressed Oil of the Seeds of Croton Tiglium . By JOHN FROST , F.L.S. , M.R.I. , & c . ( Commu- nicated by the Author . ) PAGE ...
... Lignites . By J. MAC CULLOCH , M.D. , F.R.S. , & c . ( Communicated by the Author . ) · Observations on the expressed Oil of the Seeds of Croton Tiglium . By JOHN FROST , F.L.S. , M.R.I. , & c . ( Commu- nicated by the Author . ) PAGE ...
Страница 205
... Lignites . By J. Mac Culloch , M.D. , F.R.S. , & c . & c . [ Communicated by the Author . ] THE substances included ... lignites are found under alluvia of a high antiquity , or else are imbedded in the strata which succeed to the coal ...
... Lignites . By J. Mac Culloch , M.D. , F.R.S. , & c . & c . [ Communicated by the Author . ] THE substances included ... lignites are found under alluvia of a high antiquity , or else are imbedded in the strata which succeed to the coal ...
Страница 206
... is perfect . If it be perfect , the difficulty of distinguishing them , which would be the blemish of a mere arrangement , becomes valuable ; as it establishes an important point , and 206 Dr. Mac Culloch on the Lignites .
... is perfect . If it be perfect , the difficulty of distinguishing them , which would be the blemish of a mere arrangement , becomes valuable ; as it establishes an important point , and 206 Dr. Mac Culloch on the Lignites .
Страница 207
... lignites may retain the marks of vegetable organization , they seldom possess the original form of the wood whence they were derived ; although the monocotyledonous can frequently be distinguished from the dicotyledonous plants . They ...
... lignites may retain the marks of vegetable organization , they seldom possess the original form of the wood whence they were derived ; although the monocotyledonous can frequently be distinguished from the dicotyledonous plants . They ...
Страница 208
... lignites which are here ranked with Cologne earth , are not always powdery , they are at least sufficiently tender to be easily reduced to that state . To these we ought to add , the casual specimens , of no decided character , which ...
... lignites which are here ranked with Cologne earth , are not always powdery , they are at least sufficiently tender to be easily reduced to that state . To these we ought to add , the casual specimens , of no decided character , which ...
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