EKGRAVINGS. 



Vol. III. is illuflrated with an Engraving ofMr. KJingert's ne«f 

 Diving Machine, by which a Perfpn may dcfcejkjd a conlidcrable 

 Pepth in Water, and move, walk, and woik as if on drj' Laud ; the 

 j^pparatus employed by MtfFrs. Pcpys and Allen in Fretfzing Fifty- 

 fix Pounds of Mcrci^ y by Artificial Cold ; aiyl for Freezing Acids, 

 Sec. The Apparatus propofed to be added to Mr. Klingert's Diving 

 Machine, to render it more cxtenfively ufcful— Captain E;)lton's 

 Ma<"hine for drawing Eolta in and out 'of Ships — Cit. (Juyton's 

 tudiometer ; the improved Machine for Cnttiiig Chaff, inv.jnted 

 I)y Mr. Robert Salmon, of Woburn, Bcdfovdihire, for which a 

 Bounty was voted to him iby the Society for the Er.coiiragerocnt 

 of Arts, &c. — The new Machine invented and cinploycd by the 

 late Mr. Cnflance to make his unrivalled VcgetaMc Cuttings for 

 the Microlcopc ; drawn and engraved from the Muuliine itfeU", now 

 in the pofTcffion of Dr. Thornton j a Plate to explain the Method 

 of forming Figures with Sand on Vibrating Surfaces, according 

 to Dr. Chladni's Theory — The Furnace employed by the French 

 Chemills in their Examination of C, Clouet's Fioccfs for the inj- 

 Tiiediate Converfion of Iron into Caft Steel by means of Caibonat 

 cf Lime ; iind the New Sttel-Yard invented by C. Paid of Geneva. 



Vol. IV. is illuftr-itcd with a Plate of Figures to explain Volta'a 

 Theory of Galvanifm — Apparatus employed by Dr. Van Marum. 

 for the Combuflion of Phofphoius in Oxygen Gas— A 4to Platy 

 relative to the Struc'turc of the CryMs of ()xyde of Tin — A liatf 

 illuftrating the btft Conllrudlon of the Vanes of Windmills, aTs far 

 as concerns the Angle of Vv'eather-— Mr. Murtict'i Pyro^ntter for 

 afcertainiag the Heat of itn Afl'ny-fuf nac^— Von Haurh's Nt-w Dif- 

 charging Eleft'cmeter, laid before the Roynl Society of Copen- 

 hagen — Humboldt's Portable Barometer fur Travellers— A Plate of 

 the comparative Height of the MouiUaiiia of Venus, the Esrih, 

 and the Moon; according to the Obfcr-ations of M. Scurohteu 

 ©f Lilicnthal — C. Regnier's New Powder-proof for afccrtaining 

 the comparative Strength of Gunpcui-dcr — And a mici'cfcopic rc- 

 prefentation of certain Animalculs found on the Surface Af a Fifh- 

 pond in Norway, which gave it a Red Appearance. 



Vol. V. is iilullrattd with a Rcprcfentatiun of a Blaft-Furnacc 

 for the Reduftion of Iron from the OiC in the large way of Ma- 

 nifafturi.-; from a Drawing by Mr, Musi!E--*.-the Apparatus em. 

 ployed by the Frinch Chtmiils in their Experiments 6a the Dcir 

 fl.gra'Jon of the Diamond ; and ajfp that ufed in the Produdlioa 

 of C<.ft Steel fiom Ir^n by Means of the Diamond — a (Tiiatto Plate 

 of a New Mercuiial Gazomet'er, invented by Mr. W. H. Pepy| 

 jiin. — Mr.Ho'W'.^Kp's Improved Air-Furnace— a Qiiano and an 

 , Odtavo Plate, containing Rcprcfcntations of Mr. BvwNs's new In^ 

 vention, whereby Apartn cnts m.ay be rnore cfFcdually h.cated than 

 by the Methods now in ufe; and the Accidents— which fo ft*- 

 qnently occur, of Women's and Children's Clothes being fet on 

 Fire by Spsf-ks from the Grate, may be preventcdr— A Chart to 

 illu(h-ate Mr. NuGEsf 8 new Magnetic Theory— Mr. South'^ 

 Ventilator for pref-.rving Corn on Ship-board — Mr. DAViS'a Port; 

 ai5lc Machine for loading and unloading Goods. '' 



