C O N S T R U C T I O N
O F
T I M B E R ,
F R O M ITS EARLY GROWTH;
E X P L A I N E D BY THE
M I C R O S C O P E ,
A N D PROVED FROM
E X P E R I M E N T S,
I N A G R E A T V A R I E T Y OF KINDS.
I N F IVE BOOKS.
1. On the PARTS of TRIES.
2. Their VESSELS,
3. Their ENCKEASE by GROWTH.
The different DISPOSITION of their
PARTS in various KINDS.
5. The PARTICULARITIES in theif
VESSELS.
W I T H FIGURES OF
Their VARIOUS APPEARANCES^
Of an INSTRUMENT invented for cutting Siices of extreme Thinnefs ;
A N D
Of a IVIICROSCOPE of a new Conftruffion, through which they were viewed;
By J O H N H I L L, M. D.
MEMBER OF THE IMPERIAL ACADEMY.
T H E S E COND EDITION;
C O R R E C T E D AND ENLARGED.
L O N D O N :
Printed for the A U T H O R ;
And Sold by B. WHITE, in Fleet-Street; L. DAVIS, in Holborn; J. ROBSON; in
Bond-Street; J.RIDLEY, in St. James's-Street; P. ELMSLY, in the Strand; anJ
T . DAVIES, in RuiTel-Street, Covent-Garden.
MDCC.LXXIV.