...sink below the horizon throughout the 24 hours, and therefore may be seen at midnight. It is due to the inclination of the earth's axis to the plane of the Ecliptic, and the consequent tilting of each hemisphere towards the sun during its summer. Mineral : A natural...

...The succession of the seasons is the result of the annual revolution of the earth round the sun, and of the inclination of the earth's axis to the plane of the ecliptic. The angle of inclination is about 23J degrees. It thus follows that the axis of the earth, though it...

...mining operations and reduce monthly crushings." One would have supposed that even if he had never heard of the inclination of the earth's axis to the plane of the ecliptic, a writer qualified to speak about South African mines would have discovered that the seasons at the...

...about the various altitudes of the sun i' different seasons of the year, no reference beinjr truck to the inclination of the earth's axis to the plane of the ecliptic, or to altitudes at noon. On p. n we read : — " By refraction we mean the property of the atmosphere...

...although, of course, the change in such obliquity ought more properly to be described as a change in the inclination of the earth's axis to the plane of the ecliptic. The more conventional phrase leads to a misconception in the untrained mind, to the effect that somehow...

...coincidence is ascribed to the solar origin of these magnetic vortices, and to the correlative fact that the inclination of the earth's axis to the plane of the ecliptic is 23° 28'. In short, these discoveries, (here only partially and cursorily mentioned,) sustained...