430 Method ofpreparh)g a cheap and duralte 



lectures had been acted upon by an enlightened individual^ 

 Mr. J. Duppy junior*, of Dublin, who had tried magnesia 

 instead of lime; and that it succeeded to his wishes. As 

 Dr. Ogilby was present at the lectures in Dublin, I am at 

 a loss to account for his mis-statements. Unwilling- to at- 

 tribute them to any improper motive, I conclude that they 

 were made in ignorance of iht facts. 



I remain, with respect, sir, your obliged, 



London, June 12, 1S12. WiLLlAM MoORE. 



LXV. Method of preparing a cheap and durable Stucco, or 

 Plaster, fur outside or inside IValls. By H. B. Way, 

 Esq. of Bridport Harbour f. 



Sir, In consequence of yonr expressing an opinion that 

 a general knowledge of my method for preparing a stucco, 

 or plaster, for outside walls of houses much exposed to sea 

 breezes or bad weather, would be of service to the public, 

 I have inclosed an account of the process, and I will with 

 pleasure furnish any further particulars of this business for 

 the Society of Arts, or permit any gentleman to examine 

 it who may wish for more information on the subject. 

 You know the situation of iny house, which is greatly ex- 

 posed to the spray of the sea and bad weather; and I can 

 truly add, that by means of this stucco it is perfectly free 

 from damp, and the plaster remains compact and durable. 

 I remain, sir. 



Your obedient humble servant, 



Bridport Harbour, Oct. 12, 1810. H. B. WaY. 



To C. Taylor, M.D. Sec. 



To make a strong Stucco, or Mortar. 



Three parts Bridport Harbour- sand to one of lime, both 

 finely sifted, and mixed with lime-water; if used as stucco, 

 the first coat to be laid on half the thickness of a crown- 

 piece; let it rernain two days, then with a painter's brush 



* The Professor showed the letter to this effect from Mr. Duppy, which 

 lie had received that morning', as also some pieces of calico goods which 

 had been bleached by the magnesian process; and Mr. Duppy also thought 

 the colours were superior in brilliancy to those prepared by lime, as the 

 former process directed. 



f From Transuclimxs of the Sncielyfor the Rncourai^emml of Arts, Manu- 

 factures, and Commerce, for 1811. The silver medal of the Society was 



voted to Mr. Way for this communication, and spcci.neas of the Scucco 

 and of the Sand are preserved iti tlie Society's Repository. 



wa^h 



