C } 
3, The Age of Trets is to be known by the number 
of Rings to be feen when the Tree is cut a-thwarr, in 
each oi which Rings is one Circle of large open Pipes ; 
-now the fewer of thefe large Pipes, the ftronger the 
Timber is, wherefore by confequence thofe Trees that 
make the largeft growth in a Year, mui\ be the clofer 
and ftronger,- and therefore thofe Trees that grow in 
warm Countries grow fafteft, and are the beft and 
toughefl Timber, which he confirms by Riga and Darit- 
zick Oak, which is of flow growth, and proxies Spongy 
and brittle Timber; whereas the contrary is obfervable 
in Englijh: and French Oak, which grows fafier, and is 
excellent Timber. 
Fig. t Reprefents a piece of Oak of i x Years growth 
cut Horizontally, where from the Centre AxoE is one 
years growth, C two years, D three years, and ib on; 
in all % I Inches, fo that the Tree in years was 4.1 
Inches Diameter. Whereas about Riga it would be 30 
or 40 Years ere it grow to that bignefi. Some of thefe 
i Circles are broader than others, particularly the Ninth,, 
the Tree from fome accidental Caufe receiving more 
Nouriflimenr, and growing fafter that Year than the 
former. He fays, he examined a piece of Afti growing 
1 in Morway^ and fourid it grew 44 years before its Semi- 
diameter was one Inch ; whereas Afh growing about 
i Delft has been obierved to increafe an Inch yearly for: 
feveral years together. 
Vir, An 
