PORT REVENUES 75 
from the gross, or the amounts are computed on a lower 
scale. 
The Harbour Tonnage Due is a due levied, as above, on 
all vessels entering a harbour or port. A distinction is 
made, however, between vessels engaged on long and short 
voyages, the due being higher, according to distance, for 
the former than for the latter. Certain special exceptions 
are made in favour of small coasting vessels, vessels 
in ballast and without cargo, and vessels simply calling 
at a port and leaving without discharging any of their 
cargo. 
The Dock Tonnage Due is levied in cases where in addition 
to harbourage, vessels make use of the dock accommodation 
of a port for the purpose of discharging or taking in cargo. 
The Dock Tonnage Due may be additional to the Harbour 
Tonnage Due, or the former may cover the latter. In 
that case the amount is correspondingly raised. 
In both the foregoing dues, provision is made for the 
incidence of rent when the stay in port or in dock exceeds 
a certain number of days. 
DUES ON GOODS 
The second class of dues are rates levied on goods— 
not for services actually rendered in handling the goods, 
but as contributions towards the general upkeep of the 
port and its establishment. Port Rates on Goods, or 
Tolls, or Town Dues, as they are variously called, are dues 
levied, in accordance with schedules approved by the 
Ministry of Transport, on all merchandise arriving at a 
port, unless dealt with on transhipment terms, i.e. excepting 
goods transferred direct from an incoming to an outgoing 
vessel within the port, without change of ownership in the 
process. 
DOCK CHARGES ON GOODS 
In addition to the foregoing rates of a general character, 
there are special port charges made in respect of the 
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