36 
Indiana U niv ersity 
Now if one multiply the figures for the actual entrances 
and clearances at Rotterdam by the ratios existing between 
Rotterdam’s entrances and clearances and those of Amster- 
dam, one arrives at the actual entrances and clearances for 
Amsterdam. That calculation appears below: 
TABLE VI 
1783 
1784 
1785 
1786 
1787 
1788 
1789 
Total 
Total actual entrances at Rotterdam 
per year from America 
3 
13 
9 
14 
16 
45 
46 
156 
Ratio between Rotterdam and Am- 
sterdam 
4 
4 
4 
4 
3 
3 
3 
Total actual entrances at Amsterdam 
per year from America 
12 
52 
36 
56 
64 
135 
138 
Total actual clearances from Rotter- 
dam per year for America 
14 
0 
3 
6 
9 
23 
37 
101 
Ratio between clearances 
15 
av. 
6 
av. 
6 
5 
7 
5 
5 
Total actual clearances from Amster- 
dam per year for America 
210 
54 
18 
30 
63 
115 
185 
There are several means of at least partially checking up 
the above results. C. Van der Oudermeulen states that the 
arrivals in 1784 at Amsterdam from America were 52, which 
happens to correspond absolutely with the result above.^^® The 
Nieuwe Nederlandsche Jaarhoeken happens to give the com- 
plete list of arrivals for the one year of 1784 from America. 
These arrivals at Amsterdam for 1784 are as follows: from 
Baltimore, 3; Charleston, 18; New York, 1; Boston, 3; Phil- 
adelphia, 11; Virginia, 13; and South Carolina, 3; making a 
total of 52.^°^ The Nieuwe N eder lands che Jaarhoeken also 
gives for 1783 arrivals at Amsterdam from only those ports 
sending as many as 10 vessels. In this list is found Balti- 
more with 12 vessels and Philadelphia with 10, making 22 for 
these two American ports, How many more came from 
American ports that sent less than 10, one cannot guess. By 
^“0 C. Van der Oudermeulen, Recherches sur le Commerce (4 vols., Amsterdam, 1778- 
1784), IV, 24. 
Nieutve Nederlandsche Jaarhoeken (1784), 1998-2000. 
^°-Ihid. (1783), 2209. 
