PY ROTE CUNY. 273 



\Vr shall add no more, at the different effect* of "Pfroich. 



are ecarcely distinguishable by the eye, ml- "7- 

 though this is not one quarter part of the Dumber CM: 

 nionly recommended in the trtati^es of pvrutechny. 



A composition without spark*, and strong. 



tre - - - 1 Ib. 4 07. o dwt. 



Sulphur - - 1 H 



Mealed powder - - 1 



No. 2. Sparkling. 



Saltpetre 

 .Mealed powder 

 Sulphur 

 Steeel filings 



The principles for the composition of tourbillons is 

 ttu's;imeas for sky-rockets. As they become larger, 

 that must be made weaker. The sky-rocket composi- 

 tions answer for them very well. 



Various Compositions for Small Wheels. 



These are marked merely as they are quick or slow, 

 that the artist may be enabled to vary the effects accor- 

 dingly. 



No. 1 .Slow, without sparks. 



It is not necessary to vary these much, but almot 

 any of the slow orquick compositions above mentionul 

 may also be used* in them. 



Compositions Jur Large Wheelt. 

 No. 1 Brilliant. 



Saltpetre 

 Sulphur 

 Mealed powder 



2 Ib. 8 oz. 



1 



No. 2. Quick, with sparks. 



Saltpetre - 3 



Sulphur - - 1 



Mealed powder 1 



Charcoal 1 



No. 3. Quick, without sparks. 



Saltpetre ... 8 



Sulphur ... 04 



Mealed powder - 08 



No. 4 Quick, with brilliant sparks. 



Saltpetre 3 



Sulphur - 1 



Mealed powder - - "012 



Steel filings - .03 



4 dwt. 











No. 5. Quicker than 3, without sparks. 



Saltpetre - - -140. 



Sulphur - 180' 



Mealed powder - - 4 



No. 6. Quick, with bright sparks, and for the single Chinese wheels. 



Saltpetre - . . 008 



.Mealed powder . . 040 



Pounded iron - ' l 8 



No. 7. A slow composition. 



Saltpetre - - 4 



Sulphur - 2 



Mealed powder - - 1 



No. 8. This, u B brilliant one of considerable strength, and an- 

 swers for all general purposes. 



Saltpetre 

 Sulphur 

 Mealed powder 

 Steel filings 

 VOL. XVII. PAHT I. 



Mealed powder 



Saltpetre 



Steel or cast-iron filings 



21b. Ooz. Odwt. 



u J i. 

 071) 



No. 8 __ Brilliant. 



2 

 o 

 



. 



Mealed powder 

 Saltpetre 

 Sulphur 

 Steel filings 



No. 3. Red sparkling. 



Mealed powder - , - 4 



Saltpetre . 1 



Sulphur - 



Charcoal - - 



No. 4. Brilliant and strong. 



. Mealed powder 1 



Saltpetre 



Steel filings - 



No. S. Brilliant and stronger. 



Mealed powder 

 Pounded iron 



i 



No. 6. Not strong, nor brilliant. 



Saltpetre 2 



Sulphur . 12 



Charcoal - - 08 



Brilliant Fires u/ith Charcoal alone. 

 No. 1. 



Mealed powder - 1600 



Charcoal, coarsely powdered 3 



This is a very strong composition, producing much sparkling fire. 



No. 2. 



Saltpetre 

 Mealed powder 

 Charcoal 



2 



U 



4 



A composition of less strength. 



No. 3. 



Saltpetre - - 4 



Mealed powder 1 



Charcoal - 6 t> 



This composition answer* for Roman candles. 



2 M 



