TO coiIresponCents. 



" N's Communication has befen'sentto the Gentleman.to. whom it refeis. 

 F. Z. is hot suited to our Publication. / 



The proffered Communications of our Correspondent Astrophilus 

 .will be gladly received, and as speedily attended to as the nature of the 



Engravings will permit. ^ 



'^^^W^^^^^^^' 



\ ' . ENGRAVINGS. 



Vol. XLV. A Plate to illustrate the Nourishment produced to the^;. 

 Plant hy its Leaves. By Mrs. iBBEtsoN. — A Plate to illustrate Mr, 

 Bakeweil's Sketch of tfie Arrangement of the Rocks and Strata in the 

 Northern Counties of England. — Plates to illustrate Mr. Robertson 

 Buchanan's Description of the Steam-Boats on the Clyde j ancj Mrs. 

 Ibbetson's Paper proving that the Embryos of the Seeds are formed in 

 the Root alone. A Plate to illustrate Mr, John Walters's Improve- 

 ments i-n Naval Architecture. — A Quarto Plate on the Roots of Plants — 

 Plate of Mr. Singer's Electric Columns ; Mr. Walker's Electrometer ; 

 Rochon's Apparatus for ascertaining the Heat of coloured Rays. 



Vol. XLVl. Mr.T. Jo^^es's New Reflecting Compass. — Mr. WoolIf's.^ 

 Patent Boiler for Steam Engines and other Purposes. — A Plate to ilhis- ^ 

 trate Mr. Woolf's Improvement on the Stearh-Engine, by which the. 

 possibility of Steam escaping past the side of the Piston is effectually pre-, 



vented. A Plate to illustrate some Electrfcal Experiments by M.De Nehs 



of Malines ; with an Extension of them by Mr. Singer and Mr. Crosse,. . 



/y Plate to illustrate the Electrical Experiments ofM. De Nblis ot 



Malines. Woolf's improvttf Steam-Engine. — A Plate to illustrate Mr. 



Evans's Paper on guiding Bjillpons through the Atmosphere. — A Plate':' 

 illustrative of Dr. Brewsti-r's PAper on Light. — A Quarto Plate to fl.. 

 lustfate Sir H. Davy's Paper on the Fire-damp of Coal-Mines, and on 

 Methods of lighting the Mines so as to prfeVcht its explosion ; and the Ac- 

 coiiiitof Mr. Stephenson's Safe-Lamp for Coal-Mines. 



Vol. XLVII. Illustrated with a Quarto Plate describing the Plani- , 

 rpHERE qf Dend^RA. — AQuarto Plate to illustrate Mr. Brown's Papef^ 

 On Architecture. — A Plate tq illustrate Sir George Cayley's Paper bn'C, 

 •Aerial Navigation ; and Kir, London's Hydrometer. — A Quarto Plat^ 

 of the Temple of Koumou, at Thebes. — A Plate of the Hew Batlis at^ 

 Ramsgate. ^ 



Vol. XLVin. AQuarto Plate of the Strand or Waterloo Bridge erected 



over the Thames at^the Savoy, London. — A Quarto Plate to illustrjrte' 



Mrs. Ibbetson's Anatomy of Vegetables. — A Quarto Plate to niustrv0i|- 



- Mrs. Ibbetson's Paper on the Physiology of Vegetables. — AlargeQuaftt^^ 



Plate to illustrate Mrs. iBBEtsos'sPaper on anew View of Vegetable Lifi?i^ 



A Quarto Plate to illustrate Mrs. Ibbetson's Paper on the Physiology--; 



of Vec^tables ; and Mr. Morn ay's Mass of Native Iron fonnd in Brasil. 



Vol. XLIX.' A Plate to illustrate Dr. EvanVs Commimication oii^ 

 Ten c;.trial Magnetism ; a new Electio-atmospherical Instrurrient ; and 

 Mr. Andrew Horn's Paper on Vision. — A Quarto Plate to illustrate 

 Mrs. iBiii-TsoN's Physiology of Vegetables.— A Plate to illustrate the 

 Solar Spots which appeared during the Year 181G ;— and Mr. Bevan's 

 Tmprovem(?in on the Sliding-Rulc. — A Plate descriptive oi Mr.EMMt.TT's 

 l-nstrumeht for the Measuiem'cnt of the Moon'is Distance fiom the^un, 

 lie. ; aho a New Reflecting Goniometci.— A Flaie toiiluitiaie Chevalier 



