185 
Fig. 16. Fig. 17. Fig. 18 
FLAKE. FLINT SAW. LOZENGE-SHAPED 
ARROW-HEAD. 
22. The traveller before starting should make himself 
thoroughly acquainted with these forms from original 
specimens at the British Museum or elsewhere, and also with 
the appearance of stone flakes, bulbs of percussion, facets, &c., 
and he should be able to distinguish the drift-types from the 
surface-types as they are known in this country. 
Megalitkic Monuments. —23. Dig between the uprights of 
megalithic monuments to ascertain if they have been used as 
burial-places, taking care not to overturn the stones. 
24. Take plans, marking the uprights in lines and the cap¬ 
stones in dotted lines, noting the compass bearings, and be 
particular in stating that they are compass-bearings, when 
such is the case, and not true bearings. 25. Are holes bored 
in the uprights ? and are there any superstitious observances 
