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14 3 ^ -fe e t Achromatic Telescope , with finder, 1 te rre s tria l a n d 4 a stro n omic al eye-pie ces, o n b rass p illar an d claw stan d , with v ertical an d h o rizo n ta l ra c k m ov em en ts, a n d ste ad y in g -ro d s, in m ah o g a n y c a s e ............................................ D itto o n im p ro v ed s ta n d ...................................................................... M ahogany s ta n d fo r d itto a n d b o lt ................................................. Un iv e rsa l E q u a to ria l s ta n d fo r d i t t o ................................................. Va rley ’s S tan d , m ah o g an y w ith b ra s s f i t t i n g s ............................. S lin g cases fo r p o rta b le T e le s c o p e s ..........................................from £ s. d. 40 0 0 42 0 0 1 1 0 .30 0 0 12 12 0 0 7 6 L a rg e r Telescope s, with every v a rie ty o f m o u n tin g , m ad e to o rd er. Spectacles and Eye-Glasses. Go ld Sp ecta cles, d o u b le jo in t ................... Go ld S p ecta cles, sin g le jo in t ........................ P la te d S p e ctac les ............................................ Go ld F o ld e rs ....................................................... P la te d F o ld e rs ................................................. Go ld E y e -fram e s ............................................ P la te d E y e - fr am e s ............................................ Silver S p ec ta cles a n d F o ld e rs ................... P e a rl o r T o rto ise sh e ll a n d Go ld H a n d - fram e s ............................................................ P e a rl o r T o rto is e sh e ll a n d Silver H a n d - f r am e s ............................................................ F re n ch T o rto ise sh e ll a n d Silver H a n d - f ram e s ............................................................ from 1 15 0 to 3 3 0 „ 1 10 0 to 3 0 0 „ 1 10 0 „ 2 15 0 to 5 5 0 „ 2 0 0 „ 0 10 0 to 2 0 0 „ 0 14 0 „ 1 0 0 „ 4 4 0 to 5 6 0 „ 1 1 0 ! „ 0 17 0 T o rto ise sh e ll Sp e ctac les, d o u b le-jo in t ... T o rto ise sh e ll S p ec ta cles, s in g le -jo in t ................. T o rto is e sh e ll F o ld e r s ........................................ from T o rto ise sh e ll F o ld e rs , with g o ld b r id g e ................ T o rto ise sh e ll Ey e -g la s s es ............................. from from 0 12 6 F in e B lu e S te e l Specta cles, d o u b le-jo in t F in e B lu e S te e l Sp ectac les, s in g le -jo in t C om m o n Blu e S te e l Spe ctac les .............. Sp ecta cles, w ith tin te d g l a s s e s ................... H o rs e -sh o e F ram e s , w ith tin te d glasses.. Ra ilway Spectac les ....................................... New Glasses to Sp e cta cles, c o n v e x ............ N ew Glasses to Sp e cta cles, concave ....... D o u b le fo r Bra z ilian P eb b les. S p e c ta c le C a s e s ................................................... O p e ra Glasses, Rac e Glasses, Ho rizo n Sweeps, &c. &c.. 0 10 6 0 7 0 to 0 18 0 1 6 0 0 3 0 to 0 6 .......................... 0 14 0 .......................... 0 13 0 0 5 0 0 11 0 1 1 0 0 14 0 0 . p e r p a ir 0 3 0 . p e r p a ir 0 4 0 0 1 0 3 0 to 2 2 0 12 0 to 9 9 0 Stereoscopes. from 7 6 to 2 6 to 0 15 0 3 0 5 0 12 0 5 M ah o g an y Stereo sco p e, an d D ia g r am s ............... T in Stereo sco p e, an d D ia g ram s ............................... P h o to g ra p h ic Views o n glass ................................ D ag u e rreo ty p e s .................................................. from T a lb o ty p e s ............................................................... » Diag ram s, &c. &c. S p a n ish M ah o g an y Box to h o ld 2 s tereoscopes a n d 2 4 slides Sp an ish M ah o g an y Box to h o ld 1 s tereo sco p e an d 32 slides S p an ish M ah o g an y Bo x to h o ld tw o dozen slides ........... S p an ish M ah o g an y Box to h o ld o n e dozen Slides ............ 0 14 Cases fo r S tereo sco p es an d Slides m ad e to O rd e r. I d.0 0 0 60 0 000 0 to . from Drawing Instruments, &c. W o lla s to n ’s C am e ra L u c id a, m o u n te d from 1 10 D raw in g In s trum e n ts fo r school u s e .......................... D itto d itto in m ah o g an y case ................................... D itto d itto in su p e rio r case, 3 ivory r u le s .............. D itto d itto d itto in e le c trum ........................ D itto d itto d itto d itto d o u b le-jo in ted Be am Com p asses ....................................................................... fr’on^ 1 2 -in ch Iv o ry P lo ttin g Scales ...................from 0 7 6 to 1 2 -inch Boxwood P lo ttin g Scales, se t o f 3, with o f fs e ts ......... Iv o ry F o ld in g R u l e s ........................................................................ fi’om Boxwood F o ld in g R u le s ............................................................... »» P la in E b o n y P a ra lle l R u le s ......................................................... „ P la in R o llin g E b o n y P a ra lle l R u le s .......................................... „ Iv o ry -e d g e d a n d g ra d u a te d P a ra lle l R u le s ................p e r in ch 3 0 0 0 7 G 1 5 0 3 5 0 3 15 0 6 0 0 1 15 0 1 0 0 0 11 0 0 6 0 0 1 0 0 4 0 0 9 0 0 1 6 Barometers, Thermometers, &c. P e d im e n t B a rom e te rs ...................................................................from 3 0 0 P e d im e n t B a rom e te r, b e s t, w ith flo a t g au g e 9 0 0 W h e el B a rom e te rs .............................................................................from 2 2 0 S ta n d a rd T h e rm om e te r ................................................................... „ 2 10 0 N e g r e tti’s M ax im um T h e rm om e te r 1 1 0 Six’s S e lf-re g is te rin g T h e rm om e te r 1 10 0 H o rizo n ta l S e lf-re g is te rin g T h e rm om e te r 0 17 0 Boxw o o d T h e rm om e te rs ..............................................................from 0 3 6 Simm o n s’s H y g r o m e t e r 2 2 0 R a in G au g es to O rd e r. Air-Pumps and Electrical Machines TO O R D E R . P rin te d by Taylor and Francis, Red Lion Court, Fleet S treet, London.