Annual Report of the Board of Regents of the Smithsonian Institution |
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Página 48
A part , however , of this region may be rendered arable by means of irrigation ,
or , in other words , a portion of the precipitated vapor may be , as it were ,
reclaimed for agricultural purposes , by artificial means ; and in determining the ...
A part , however , of this region may be rendered arable by means of irrigation ,
or , in other words , a portion of the precipitated vapor may be , as it were ,
reclaimed for agricultural purposes , by artificial means ; and in determining the ...
Página 52
It is , in fact , a Stygian pool , from which are constantly ascending in bubbles , as
from a caldron , mephitic vapors . That part of it which bounds the Smithsonian
grounds and those of the Agricultural Department , on the north , consists of a ...
It is , in fact , a Stygian pool , from which are constantly ascending in bubbles , as
from a caldron , mephitic vapors . That part of it which bounds the Smithsonian
grounds and those of the Agricultural Department , on the north , consists of a ...
Página 115
These gases consist of about 73 per centum of light carburetted hydrogen , 16
per centum of carbonic acid , 10 of nitrogen , and traces of sulphuretted hydrogen
, ammonia , and a putrid , organic vapor that is in the highest degree offensive .
These gases consist of about 73 per centum of light carburetted hydrogen , 16
per centum of carbonic acid , 10 of nitrogen , and traces of sulphuretted hydrogen
, ammonia , and a putrid , organic vapor that is in the highest degree offensive .
Página 190
Or ozone may at once be produced by plunging a heated glass rod into a mixture
of air and a vapor of ether . The galvanic decomposition of water acidulated with
sulphuric acid , or better , perhaps , with the addition of chromic acid , affords at ...
Or ozone may at once be produced by plunging a heated glass rod into a mixture
of air and a vapor of ether . The galvanic decomposition of water acidulated with
sulphuric acid , or better , perhaps , with the addition of chromic acid , affords at ...
Página 233
But when it relates to a gas or to vapor the absorption is much more difficult to
demonstrate . We owe to M . Tyndall , in England , and to M . Magnus , in
Germany , the experimental proof of the absorption of heat by gases and the
measure of ...
But when it relates to a gas or to vapor the absorption is much more difficult to
demonstrate . We owe to M . Tyndall , in England , and to M . Magnus , in
Germany , the experimental proof of the absorption of heat by gases and the
measure of ...
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according action animals appear atmosphere atoms beam become body bones character collections communicated complete compression considerable considered contained continued corresponding Cuvier determination developed direction discovery effect electric entire equal exist experiments fact fall force give given heat hence important inches indicated Institution interest iron James John known labor laws less light manner mass Massachusetts material matter means mechanical metal meteorites method Michigan movement Name nature necessary North object observations obtained Oersted Ohio organs origin pass Pennsylvania position present pressure principle produced Prof Professor quantity question rays received referred regard relations remains rendered researches Smithsonian Society species specimens stone surface temperature theory tion tube United University vapor volume weight whole York
Pasajes populares
Página 7 - The property is bequeathed to the United States of America, "to found at Washington, under the name of the SMITHSONIAN INSTITUTION, an establishment for the increase and diffusion of knowledge among men.
Página 8 - To INCREASE KNOWLEDGE. It is proposed — 1. To stimulate men of talent to make original researches, by offering suitable rewards for memoirs containing new truths ; and, 2. To appropriate annually a portion of the income for particular researches, under the direction of suitable persons.
Página 9 - ... of literary and scientific societies, and copies to be given to all the colleges and principal libraries in this country. One part of the remaining copies may be offered for sale, and the other carefully preserved, to form complete sets of the work, to supply the demand from new institutions.
Página 10 - The following are some of the subjects which may be embraced in the reports:* I. PHYSICAL CLASS. 1. Physics, including astronomy, natural philosophy, chemistry, and meteorology. 2. Natural history, including botany, zoology, geology, &c. 3. Agriculture. 4. Application of science to arts. II. MORAL AND POLITICAL CLASS. 5. Ethnology, including particular history, comparative philology, antiquities, &c.
Página 11 - It is believed that the collections in natural history will increase by donation as rapidly as the income of the Institution can make provision for their reception, and therefore it will seldom be necessary to purchase articles of this kind.
Página 11 - With reference to the collection of books, other than those mentioned above, catalogues of all the different libraries in the United States should be procured, in order that the valuable books first purchased may oe such as are not to be found in the United States.
Página 8 - No memoir on subjects of physical science to be accepted for publication which does not furnish, a positive addition to human knowledge, resting on original research; and all unverified speculations to be rejected.
Página 294 - Heat is a very brisk agitation of the insensible parts of the object, which produces in us that sensation from whence we denominate the object hot ; so what in our sensation is heat, in the object is nothing but motion.
Página 292 - The optic nerve passes from the brain to the back of the eyeball and there spreads out, to form the retina, a web of nerve filaments, on which the images of external objects are projected by the optical portion of the eye. This nerve is limited to the apprehension of the phenomena of radiation, and, notwithstanding its marvellous sensibility to certain impressions of this class, it is singularly obtuse to other impressions.
Página 11 - Resolved, That hereafter the annual appropriations shall be apportioned specifically among the different objects and operations of the Institution, in such manner as may, in the judgment of the Regents, be necessary and proper for each, according to its intrinsic importance, and a compliance in good faith with the law.