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Article SCIENTIFIC INTELLIGENCE. ← Page 4 of 4
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Scientific Intelligence.
barrels , in addition to their never bursting , carry closer and sharper , in a great proportion , than the common ones . PIKES . His Royal Highness the Duke of York has lately received from a Doctor Curry , physician at Kettering , Northamptonshire , and commander of a volunteer corps there , some remarks on the use of the Military Pike , with
drawings of an improved one . The object oithis improvement is said robe , the rendering the pike equally effectual for tlie- purpose of defence , as it is known to be for that of attack ; and the communication lias been considered by his Royal Hig hness as particularly deserving of attention . The addition of a pistol , with the short Roman sword and a light target , would perhaps arm a soldier as completely as it is possible for field-service . BOTANY .
Citizen Baudin , sent on a voyage of discovery by the French Government , has returned from America , with the richest collection ol living exotic plants ever brought info Europe . The-number is estimated at 3500 , among jvhich are trees 25 feet in height ,, and from 12 to 15 inches diameter . MEDICINE . YELLOW FEVER .
IT seems to be generally admitted , thai this fever is not an imported disease ; at least that it has , in several instances , orig inated from the putrefying offal of animal and vegetable matter about the docks of the American ports : with the removal of tliis infecting mass , the fever has uniformly been mitigated , and gradually removed . Upon this fact Dr . Mitchell has founded a theory , which is at present very popular , that azate , or nitrous gas ( called by him septon , and the septic acid ) is the proximate cause of mfeflious fever ; and ' that lime , and the alkalis , by neutralizing the acid , destroy the source of infection . .
CHYMISTRY . MR . FABRONI has discovered , that a juice expressed from the leaves of the socotorine aloe yields , by simple exposure to the air , a very deep and lively vioiet-pm pie dye , which is not ailed upon by .. acids , alkalies , or oxygen gas . He thinks it may be hi ghly useful in forming a pigment for miniature painting ; and also , dissolved in " water , for dying silk , which it will effect without the liseofa mordant . Though this aloe is a native of a tropical climate , it is
supposed that 11 might be readily cultr . ated in the south of Italy . YEAST . ' THIS useful article , of which ( here is frequently a scarcity in this country , is thus picpaicd on the Coast of Persia . Take a small tea-cup or v , h > . e-gia > s full of split or bruised peas , pour on it a pint of boiling water , and set the whole in a vi s :-el all niht on the ht ; -u thor any other warm place ; the water
g , will h-: tvea fioth on its top the . next morning , which will be good yeast . Mr . Eton , when in Persia , had his bread made with this yeast , and in the Engii-h manner , of good wheat flour . In our cold climate , especially in a cold season , it should stand longer to ferment , perhaps twenty-four or lortyeight hctirs . Of all the methods of making yeast hitherto known , this is by far the most simple and commodious .
Note: This text has been automatically extracted via Optical Character Recognition (OCR) software.
Scientific Intelligence.
barrels , in addition to their never bursting , carry closer and sharper , in a great proportion , than the common ones . PIKES . His Royal Highness the Duke of York has lately received from a Doctor Curry , physician at Kettering , Northamptonshire , and commander of a volunteer corps there , some remarks on the use of the Military Pike , with
drawings of an improved one . The object oithis improvement is said robe , the rendering the pike equally effectual for tlie- purpose of defence , as it is known to be for that of attack ; and the communication lias been considered by his Royal Hig hness as particularly deserving of attention . The addition of a pistol , with the short Roman sword and a light target , would perhaps arm a soldier as completely as it is possible for field-service . BOTANY .
Citizen Baudin , sent on a voyage of discovery by the French Government , has returned from America , with the richest collection ol living exotic plants ever brought info Europe . The-number is estimated at 3500 , among jvhich are trees 25 feet in height ,, and from 12 to 15 inches diameter . MEDICINE . YELLOW FEVER .
IT seems to be generally admitted , thai this fever is not an imported disease ; at least that it has , in several instances , orig inated from the putrefying offal of animal and vegetable matter about the docks of the American ports : with the removal of tliis infecting mass , the fever has uniformly been mitigated , and gradually removed . Upon this fact Dr . Mitchell has founded a theory , which is at present very popular , that azate , or nitrous gas ( called by him septon , and the septic acid ) is the proximate cause of mfeflious fever ; and ' that lime , and the alkalis , by neutralizing the acid , destroy the source of infection . .
CHYMISTRY . MR . FABRONI has discovered , that a juice expressed from the leaves of the socotorine aloe yields , by simple exposure to the air , a very deep and lively vioiet-pm pie dye , which is not ailed upon by .. acids , alkalies , or oxygen gas . He thinks it may be hi ghly useful in forming a pigment for miniature painting ; and also , dissolved in " water , for dying silk , which it will effect without the liseofa mordant . Though this aloe is a native of a tropical climate , it is
supposed that 11 might be readily cultr . ated in the south of Italy . YEAST . ' THIS useful article , of which ( here is frequently a scarcity in this country , is thus picpaicd on the Coast of Persia . Take a small tea-cup or v , h > . e-gia > s full of split or bruised peas , pour on it a pint of boiling water , and set the whole in a vi s :-el all niht on the ht ; -u thor any other warm place ; the water
g , will h-: tvea fioth on its top the . next morning , which will be good yeast . Mr . Eton , when in Persia , had his bread made with this yeast , and in the Engii-h manner , of good wheat flour . In our cold climate , especially in a cold season , it should stand longer to ferment , perhaps twenty-four or lortyeight hctirs . Of all the methods of making yeast hitherto known , this is by far the most simple and commodious .