APPLIANCES FOE DISSECTING TABLE 401 



In using this table for dissection the arms have complete rest, 

 and 1 in the figure would represent the position of the dissecting 

 microscope. 



. 2 is a suitable position for a small easily managed microtome 

 for general (chiefly botanical) purposes. We find that of Ryder l to 

 answer this purpose admirably. 



3 is a small vessel of spirit (dilute) for use with the section 

 knife. 



4 is a stand of mounting media, in suitable bottles, as Canada 

 balsam in paraffin, or xylol, glycerine, &c., as well as small bottles 

 of reagents for botanical or zoological histology, &c. 



f) is a nest of apertures in which to place partly mounted objects, 

 to protect them from dust, while the balsam, dammar. &c. may be 

 hardening on the cover so as to be in a suitable state for final mount- 

 ing. A slide may go over the sloping front of this and wholly ex- 

 dude dust. 



6 is a stand of cements, varnishes, Arc., such as are needful ; and 



7 is a turn-table. 



For the work of dissection, when the subject requires reflected 

 light, one of the desiderata is a mode of illumination at once con- 

 venient and intense. Mr. Frank R. Cheshire, F.L.S., &c.. whose work 

 on 'Bees and Bee-keeping' is a proof of knowledge and practice of 

 minute anatomy, adopts an 



old plan which we have ^JUs ^7 \ 



always found admirable. It 

 is illustrated in fig. 337. 

 Rays of light from a lamp 

 are parallelised by a bull's- 

 eye full upon an Abraham's I'n, :i:',7.-Mode of illumination for 



prism and focussed upon the dissection. 



object. The prism may be 



mounted on a long many -jointed arm, and is of most varied useful- 

 ness. A Stephenson's binocular is, we believe, employed by this 

 gentleman, but it will serve admirably for any form of dissecting 

 instrument. 



For the more general purpose of the private laboratory /tlain. 

 farm, table 4 feet 6 inches X 3 feet in area, of a suitable height for 

 the worker, should be fitted as follows, viz. : if fig. 338 represent the 

 rough plan of the table, 1 and 2 are gas fitting attached to the main 

 to supply blowpipe, AV//.sr//.s littrtn'r. A.T. 



4 is a small tube of metal attached to the water main, with a 

 tap, and bent in the form of an inverted f|, with the attached leg of 

 the n the longer. This affords a pleasant stream of water for wash- 

 ing dissections, etc. ; and if the open end. /' made n-ith a screw, and 

 have a suitably made piece of tub my fitted to .s-ov/r on to it. this latter 

 may be attached to an indiarubber 'tube, at t/><- ///</ end of u-hich -u-e 

 may fasten fine ylass nozzles, which will act as wash bottles of the 



finest bore, and serve with the finest dissecting work. 



5 is a glass trough for waste, with a perforated aperture, 6, con- 



Jotirn. R.M.S. new series, l.ssT. )>. r.s-j. 



D D 



