28 
HARTLAND NATURE CLUB 
color or composition. Among the local rocks of Woodstock 
and vicinty there are no elastics. The freshly broken face 
of a piece of clastic feels like sand-paper of the grade shown 
by the size of the grains in the rock. Clastics will thus be 
foreigners, and will be found in the glacial deposits. 
2. A light bricklayer’s hammer with a square face is the best 
one for breaking off and dressing specimens. The long and 
chisel-like end is excellent for digging into loose deposits, as well 
as for cutting into soft and decomposed rocks to obtain un¬ 
weathered specimens. 
3. A good collection contains both weathered and fresh specimens 
of rocks, if possible to collect. 
4. Rocks containing prominently crystallized minerals may re¬ 
quire larger specimens to show the prevalence or scarceness of 
the enclosures. 
