(( Wl ) 
I cannot call to?Mindi that there is any Inftance 
of fuch a tranfient c Vapour or Damp recorded in the 
Royal franfd^wns ; and^ muft confefs I am at a Lofs 
how to account for kl Should there be Subterra* 
neous Exhalations which, like the Clouds. or Wind in 
the Atmofphere, fhifted from one Place to another, it 
might be of great Importance to obferve the Particulars 
thereof, efpecially fuch • as are Malignant^ as this 
was.. The Paffage of this Vapour was about 25* Feet 
belb'w the Surface : a" Depth- too’ great for it to affed^ 
Cellars or Vaults.^ - ' ^ 
I had' forgot ^to note, that this Part of the Town 
lies very high^’ and the Ground for about ten Feet 
hard Clay,* and the reft a'coarfe Sand and Gravel. ^ 
^ ■ L i ,. // . » 
I i'- 2 ’ 
III. A Letter from the Kfngs Officers at Sheernefs 
^ and Chatham, to the Honourable the Com-> 
miffioners of the Navy, giVmg an Account of 
ivhat they 7net with in opening an antknt Well 
near Queenborough in Kent, communicated 
hy Mr; Peter Collifon, F. 5^. S. on January 
8, 1729. '""a 
I 
Chatham-Dock, Oftob. 9. 1725, 
Right Honourable^ 
I N Obedience to your Honours Warrant of the 
oi September laft, we met at the Well near 
borough^ witere the Caftle formerly ftood, on Tuef- 
day the 24th ditto^ and finding but very little Wa- 
ter 
