ENGRAVINGS. 



Plate of the Apparatus employed by Mess. Allen and Pepts In th^.V v 

 per.ments on Carbonic Acid-A to-.rth Plate to illustrate AT Cuv't 

 Paper on Elephants-Lieut. C.,1. CuicHTcn's Ed for the easv ConV.,,!^! 

 of Sick and Wounded Soldiers: eng.aved by PonSa-S Sot ^p" 

 LEY'S Improved Telegraph : engraved by Porter ^ ^^ 



T ^'''' ^^?"J'' "• .?• ^NGLEFiELD's Mountain Barometer, engraved I 

 pt 7k^ Plate to .llustrate M. Cuvek's Paper on Elephams-Ano.h 

 Plate on the same Subject.-i and a. Two Plates to illustrate M. Cuv°' k 

 Paper on Elephants, engraved by Porter.-^. Figures to illustrate M 

 Herschels Paper on Colou.;ed Rings._./V Skeleton of the America 

 Mamrnoth, engraved by Porter.-A Portrait of M. ,CARKoT_The Oil 

 mill of Bangalore. 



Vol. XXXI Mr. Davy's new Eudiometer._Geolo<rical Sections c 

 Srata, m Matlock, Derbyshire, by Mr. Wh.tehurst a^d Mr FarTy - 

 ion'lnS mJ E ""'p'"°'^f propagating Fruit Trees by Abscis 

 sion—And Mr. Broad's Gauge for measur ng Timber —j'llu/rr;>tinn r 

 Mrs. D'OVLEV'S Method of bre^ed.ng Poultry ; Mr. Drew's BalanS Lev 

 ^r laymg-out Land for Irrigation ; and an Experiment in Optics.-Mr P 

 luRKELLS Construction of Chemical Muffles.— Mr. Gilpin's Machin 

 for raising Coals and Orcs.-WitsoN's Secure Boat, or Life Boat an 

 BoswELL s improved Capstan : engraved by Porter— Pepys's Annaratn 

 for Decomposing the Alkalis under Naphtha : engraved by Lowrv - 

 Atkin s s improved Hydrometer for weighing Solids and Fluids 



Vol XXXII. Mr. Cleall's Machine for thrashing Hemp ; and Mr 

 Bonds Machme far breaking Hemp._Mr. Ward's Compensation Pen 

 dulum_-Mr. Groombridge's Diagram of the Motion of the Planet Vesta 

 -A Portrait of Sir H C. EKGL,.Fi,LD.-Mr. Charlbs Le Caan'. 

 Tram-P,ates-ar.d Mr Collier's Ship Stove.-Apparatns employed b} 

 Messrs. Allen and Pepys in their Experiments on Respiration -Mr 

 Henry s Apiaratus for Decomposing Compound Jnflammabl. Gases.- 

 Apparatus employed in the Royal Institution for ihe Decompo..ition o 



,f f Xl7?;~?/''V' ^^^^^""^ "' **^"'? Shipwrecked Mariners. 



AT r . I' ^r- J*M" Elmess Portable Brid-e.— Mr. Knight'j 

 new Method of training Fruit Trees.- Mr. Herschel's Ficrures x,f th. 

 Comet oti8o7.~Two Plates to iUust.ate Dr. William RrcHAUosov'. 

 Paper on the Basaltic Surface of the Counties of D.rry and Ar.i.im • viz 

 A View of POKTMOON. —A y lew of Pleskin, on the N W. s,de ofBen^ 

 gore Pronaoj.tory.-Mr. Cleg'^,V A pparatus for making Carbonated Hydro 

 gen Gas from Pit-Coal.-Mr Rich ■.rx^sons . Machme for raisin^n 

 Stones out of the Earth ;— and Mr. GouGn s new Hygrometer.— P„%on"^ 

 Light Fence for Inclosures, which becomes invisible .r, a short Distance — 

 Proposed Improvements in Telescopes, ov M. Bukckhahdt and by Dr 

 Brj^stek ; and M. BoulIay's Apparatus 'or Phosphoric Ether.— Major 

 Le Hardy s Telegraph.— Capt. Bolton i improved jury Mast; and Capt 

 ^ALLS Method of Fishing \nch.-,rs.— Plan ,md SeciLn of the Thames 

 Archway.— Plan of Stonyhurst Scientific Eotab ishmcnt.— Mr Tad's Me. 

 thod of causing a Door to open o;er a Carpet ;— and Mr. Barlow's Wrench 

 lor Screw Nuts of any Size. 



Vol. XXXiy, Two Jlates to illustrate M. Hauy's Crystallographv — 

 Apparatus to illustrate Mr. Davy's Hikerian Lecture— A Quarfo and'an 

 Octavo Plate descriptive of Mr. Troughton's new dividing Instrument — 

 A Plate to illustrate Mr. Varley's Paper oo Thunder Storms.— Another 

 P ate to illustrate Hauy's Theory of Crystallization— A Quarto Plate to 



illustrate Mr. Kikwan's new Anemometer; engraved by Porter \n 



Octavo Plate to illustratcM. I^vy's Crystallography; engraved by Lowri- 



