Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art for ...1871 |
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Pagina ix
... amount of alkali added until this amount reaches 1 , 2 , ,, of a molecule of alkali , according as the acid is mono- , di- , tri- or tetra - basic . Silicic acid forms an exception to this law , as do also , to a certain extent ...
... amount of alkali added until this amount reaches 1 , 2 , ,, of a molecule of alkali , according as the acid is mono- , di- , tri- or tetra - basic . Silicic acid forms an exception to this law , as do also , to a certain extent ...
Pagina x
... amount of organic matter in the atmosphere and its character , whether harmless or injurious is still far from being solved . ― While in technical chemistry there is little to record that is strictly new , attention may be called to the ...
... amount of organic matter in the atmosphere and its character , whether harmless or injurious is still far from being solved . ― While in technical chemistry there is little to record that is strictly new , attention may be called to the ...
Pagina xiii
... amount- ing to 40,690 ° C. Having shown that the explanation of the eruptive protuberances necessitates the existence of a separating stratum between the space from which they emanate and the space into which they pass , we must assume ...
... amount- ing to 40,690 ° C. Having shown that the explanation of the eruptive protuberances necessitates the existence of a separating stratum between the space from which they emanate and the space into which they pass , we must assume ...
Pagina 24
... amount of approval . Of the performance of this furnace very conflicting accounts are given ; but I believe that under favorable conditions as to fuel , management , and work to be done , when applied to externally fired boilers the ...
... amount of approval . Of the performance of this furnace very conflicting accounts are given ; but I believe that under favorable conditions as to fuel , management , and work to be done , when applied to externally fired boilers the ...
Pagina 25
... amount of wear and tear is not greater than what occurs in most ordinary furnaces . 66 -- ' With regard to the economical results obtained , you will find some particulars given in our circular . As compared with the best hand - firing ...
... amount of wear and tear is not greater than what occurs in most ordinary furnaces . 66 -- ' With regard to the economical results obtained , you will find some particulars given in our circular . As compared with the best hand - firing ...
Overige edities - Alles bekijken
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1859 |
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1852 |
Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art ... Volledige weergave - 1858 |
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according acid action American amount animals appears arrangement atmosphere becomes body carbonic carbonic acid carried cause cent chemical chloride close cloth color condition connected considerable consists construction containing continuous course deposits direction effect electric employed engine entirely equal exist experiments fact feet force furnace given gives greater heat important inches increase indicated interesting iron known length less light liquid manufacture mass material matter means metal method miles nature Neocomian observations obtained occurs ordinary organic origin oxide pass placed portion position possible pounds prepared present pressure produced Professor proved quantity recent regard remains removed river rocks salt Science side similar solution steam stone substance sufficient sulphur surface taken temperature theory thickness tion tube various volume weight whole
Populaire passages
Pagina 256 - ... simplicity, endowed, like existing Fungi, with the power of determining the formation of new protoplasm from such matters as ammonium carbonates, oxalates and tartrates, alkaline and earthy phosphates, and water, without the aid of light. That is the expectation to which analogical reasoning leads me ; but I beg you once more to recollect that I have no right to call my opinion anything but an act of philosophical faith.
Pagina 127 - On partially liquefying carbonic acid by pressure alone, and gradually raising at the same time the temperature to 88° Fahr., the surface of demarcation between the liquid and gas became fainter, lost its curvature, and at last disappeared. The space was then occupied by a homogeneous fluid, which exhibited, when the pressure was suddenly diminished or the temperature slightly lowered, a peculiar appearance of moving or flickering striae throughout its entire mass.
Pagina 255 - Belief, in the scientific sense of the word, is a serious matter, and needs strong foundations. To say, therefore, in the admitted absence of evidence, that I have any belief as to the mode in which the existing forms of life have originated, would be using words in. a wrong sense. But expectation is permissible where belief is not ; and if it were given me to look beyond the abyss of geologically recorded time to the still more remote period when the earth was passing through physical and chemical...
Pagina 254 - It is demonstrable that a fluid eminently fit for the development of the lowest forms of life, but which contains neither germs, nor any protein compound, gives rise to living things in great abundance if it is exposed to ordinary air; while no such development takes place, if the air with which it is in contact is mechanically freed from the solid particles which ordinarily float in it, and which may be made visible by appropriate means.
Pagina 262 - And thus mankind will have one more admonition that ' the people perish for lack of knowledge;' and that the alleviation of the miseries and the promotion of the welfare of men must be sought, by those who will not lose their pains, in that diligent, patient, loving study of all the multitudinous aspects of nature, the results of which constitute exact knowledge or science.
Pagina 175 - USA, read a paper on this subject, of which the following is an abstract : — " Cast iron — the raw material from which the malleable metal is made — may be formulated approximately as follows : — Silicon (Si), 5 to 3 per cent. Phosphorus (P), 05 to 2 per cent. Manganese (Mn) , 0 to 20 per cent. Sulphur (S), 25 to 2 per cent. Carbon (C), 2 to 5 per cent. Iron (Fe), 90 to 9G.5 per cent.