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Students are advised to omit every article that is marked with an asterisk.

A double asterisk has been placed before those articles which should be omitted by all Students until they are reading the subject for the second time.

An Appendix containing a description of the Vernier, the Theodolite, the Sextant etc. has been added.

A Key by Mr CARR is now ready.

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Draw GK perpendicular to EF; the angle turned through by EF
in any movement, is equal to the angle turned through by GK; and
the angle QGC is always double of KGQ'; therefore the amount of
turning of GQ relative to GC (which is fixed) is double that of GK
relative to GB; that is is double of the amount of turning of EF.

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ANSWERS TO EXAMPLES

241

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Students are advised to omit every article that is
marked with an asterisk.

A double asterisk has been placed before those

articles which should be omitted by all Students

until they are reading the subject for the second

time.

An Appendix containing a description of the

Vernier, the Theodolite, the Sextant etc. has been

added

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