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Surveying, 1551. Artist: Unknown
 
Surveying, 1551. Artist: Unknown
 
Surveying, 1551. Artist: Unknown
 
Surveying and timekeeping, 1551. Artist: Unknown
 
Surveying, early 17th century. Artist: Unknown
 
Surveying, early 17th century. Artist: Unknown
 
Pierre-Louis Moreau de Maupertuis, French astronomer and mathematician, in Finland, 1736, (1874). Artist: Unknown
 
James Brindley, English civil engineer and canal builder, c1770 (1835). Artist: Unknown
 
Frontispiece of A New System of Mathematicks by Jonas Moore, 1681. Artist: Unknown
 
Using a cross-staff to measure the height of a tower, 1617-1619. Artist: Unknown
 
Cross-staffs used for surveying, 1551. Artist: Unknown
 
Title page of The Description and Use of the Sector by Edmund Gunter, 1636. Artist: Unknown
 
Measuring the altitude of the Sun, 1539. Artist: Unknown
 
Measuring the distance from ship to shore, using a quadrant marked with shadow-scales, 1598. Artist: Unknown
 
Method of measuring angles with a cross-staff, 1636. Artist: Unknown