430
[Unit®”
pointing out the thousandth part of an inch in the riseand fall of the mercury.
This instrument is represented in the annexed cut.
;//»» XtstiXjCi/tsStti/ff
DolVbie’s Improved Barometer.
168 Collard & Collard, Cheapside— Manufacturers.
Grand pianoforte, in British mottled oak, with golddecorations, in the style of Louis Quinze; bichord piano-forte, square semi pianoforte, vase form, and grand cabinetpianoforte, all with the patent check and repeater action.
Pianoforte for the people.—( Grand pianoforte in MainAvenue.)
175 List, G. B., Southampton — Inventor.
An apparatus for setting fractures, and as a rest for thetreatment of other accidents and diseases of the lowerextremities. Manufactured by J. R. Stebbing, South-ampton. It is stated that a surgeon, by the use of thisapparatus, can, without any other assistance, set simple,compound, and compound-comminuted fractures of thelower extremity: that it keeps the fractured ends ofthe bone in apposition, without the aid of splints for theafter treatment; that tight straps or bandages encirclingthe limb above the injury are not employed; that thelimb, when the bone is set, can immediately, or at anytime during the healing process, be put into any positionthat may be most comfortable to the patient withoutinconvenience. This apparatus is also stated to be anexcellent rest for the treatment of fractured patella,diseased hip-joints, popliteal aneurism (by compression),varicose veins, ulcers, and other accidents and diseases ofthe lower extremities.
181 Matthews, William, 10 Portugal Street,Lincoln’s Inn Fields —Manufacturer.
Stethoscope—the ear-piece, subserving the uses of botha conductor and sounding board, is of large dimensions,so as to transmit the vibrations of the instrument undi-minished.
[The science of medicine is indebted to Laennec , aFrench physician , for the discovery of the stethoscope.
This physician first made known the important fact, t 1diseases of the heart and lungs might be rendered Pceptible to a practised ear by the intervention simplya hollow cylinder of wood. The instrument in allforms is merely a medium for the conveyance of soU !' ’healthy or morbid, to the ear of the physician . Stescopes are made in various materials ; those of light Lare to be preferred.—R. E.]
Specula for the ear, &c., made of glass, silv-ered.silver leaf, and covered with cotton cloth and elastic g l ^Gilbert’s patent fulcrum and chair for extracting tecThis apparatus is shown in the annexed cut:—
5h. I
Gilbert’s Tootli Extractor.
New swinging apparatus for the treatment ofof the leg; to prevent the bed-clothes from intertewith the motion of the leg. . t ],e
Inhaler, for opium and other medicines requiriRoaid of heat for their inhalation. _ r9 -
Inhaler, for administering chloroform in surgical options, with water-bath to regulate the evaporation. . crInhaler, for hydrocyanic acid, conicine, and 0medicines. Table knives.
187 Bateman, Joseph, LL.D., East India Hoad, ppInland Revenue Office —Designer and Prop’"’® oCentrifugal machine, illustrating planetary motl0 J' il blcThe object of this machine is to exhibit the reniaitendency of all bodies, having a longer and shorter < (()to revolve upon their shorter axis: a tendency conin’ ^ . ()lall the planetary bodies, as far as we are acquaint® jj’gtheir motions, as well as to all bodies on or near the ® e tsurface. To illustrate this tendency, a model of the P^j u .Saturn is suspended by its longer axis, and set ip r ^ a „ce,tion by means of a machine which, in the present inS o ‘ t ; 01 i,is regulated by clockwork. As soon as it is w '“ ■(jofl,the model, of its own accord, quits its vertical P°] l0r terand assumes a horizontal one, so as to spin on its ® t ;oflaxis, and this it continues to do as long as the * ]f | gis kept up,—just in the same wp.y as the planet . j nC isrevolving at millions of miles distance. The ma ^fitted up in open brass-work, the escapement It
has been arranged by Mr. Jennings, of Birmingb ^ byis mounted on a kind of triumphal arch, exeC ? n j th eMr. Flint and Mr. Stokes, of the same place. ^ th®model planet revolves in a circular space, represen j^tedsolar system, surrounded by the signs of the z0 , Kljter*on glass by Mrs. Bateman, and Mr. Mason, of b