Class:1C

Date: 29^th July 1998

Understanding Maps is a very excellent, useful and comprehensive book on maps. It helps me to learn a lot more about maps. This book is related to Chapter 3 (Environment Through Maps) of the Secondary One Geography Textbook.

Other than those information mentioned in the textbook (on the elements of map, latitudes and longitudes, grid references, scale, contours, symbols etc). This book provide many other information and extra information on those information mentioned in the textbook.

The "other information" I mentioned include:

• History of the globe.
• Problems of map making.
• The Atlas (on how Mercator divided the globe into twelve gores).
• Ordnance Survey Maps.
• Setting A Map.
• Gradients.
• Roads, Railways, Rivers and Canals.
• Antiquities.
• Different kind of maps (Road, Town, Rural, Physical, Geology, Population, Rainfall, Land Use and weather maps).
• Aerial Photography.
• Admiralty Charts.
• Sea Navigation.
• Triangulation.
• How to make a map (which is also the most interesting part of the book).

• History of the globe.

• Probability of distortion of flat maps.

• How Mercator divided the globe into twelve gores.

• The Imperial and Metric Scale.

• Ordnance Survey Maps.

• The 2 arrows on every right hand margin of ordnance Survey Map (The two points are the true north and the magnetic north).

• Setting a map accurately by using a watch.

• Gradients (1 in 50, 1 in 15, 1 in 7).

• Antiquities.

• Different kinds of maps.

• Aerial Photography.

• Admiralty Charts.

• Sea Navigation.

• Triangulation.

• Map Making.