PS5 B. Satyanarayana et al., 
On aging problem of glass Resistive Plate Chambers

Your article has been accepted for the 2005 RPC workshop proceedings.  I would like to ask small number of minor corrections as the follows;

1. Please use ‘\times’ instead of ‘X’ for multiplications and areas, 
   i.e., 2 $\times$ 2 m$^{2}$ instead of 2m X 2m.  
      30 $\times$ 30 cm$^{2}$, 120 $\times$ 90 cm$^{2}$, ….

2. In Fig. 2, Freon 134a -> Freon R134a 

3. Page 2 : Iso-butane -> isobutane or i–C4H10    

4. 1.2 nSec -> 1.2 ns

5. 3 page in ‘Further studies on aging’ 
   Freon (R134a) and Iso-butane -> R134a Freon and isobutene. 
   
6. Please get rid of boundary box in Fig. 9 and enlarge the size of the figure. 
   Put % on y-axis (efficiency).   

7. Figures 10 and 11 are too small to identify.  For Fig. 10, you could locate two figures on to and bottom of Fig. 10.  For Fig. 11, please get rid of the boundary box of the figure and enlarge the width up to 7.5 cm. 

8. In ‘Conclusion’, it is not clear to solve the current aging problem. Do you have a plan of using an another gas mixture ?
For an argon base gas mixture for example, Ar: C2H2F4 : i-C4H10 = 65:15:20.  I mean using a smaller portion of Freon. There could be some different gas mixtures in SLAC and FNAL experiments. Then we could use smaller portions of Freon and explosive isobutene.    

9. In References 
NIM A, 484, 153-161, 2002 -> Nucl. Instr. Meth. A {\bf 484} (2002) 153.