f Cold._

There is in the Press, a New _Treatise_, entituled, _New Observations and
Experiments in order to an Experimental History of Cold_, begun by that
Noble Philosopher, Mr. _Robert Boyle_, and in great part already Printed;
He did lately very obligingly present several Copies of so much as was
Printed, to the _Royal Society_, with a desire that some of the Members
thereof might be engaged to peruse the Book, and select out of it for
trial, the hints of such Experiments, as the _Author_ there wisheth might
be either yet made or prosecuted. The Heads thereof are,

1. Experiments touching Bodies capable of Freezing others.

2. Experiments and Observations touching Bodies Disposed to be Frozen.

3. Experiments touching Bodies, Indisposed to be Frozen.

4. Experiments and Observations touching the Degrees of Cold in several
Bodies.

5. Experiments touching the Tendency of Cold Upwards or Downwards.

6. Experiments and Observations touching the Preservation and Destruction
of (Eggs, Apples, and other) Bodies by Cold.

7. Experiments touching the Expansion of Water and Aqueous Liquors by
Freezing.

8. Experiments touching the Contraction of Liquors by Cold.

9. Experiments in Consort, touching the Bubbles, from which the Levity of
Ice is supposed to proceed.

10. Experiments about the Measure of the Expansion and the Contraction of
Liquors by Cold.

11. Experiments touching the Expansive Force of Freezing Water.

12. Experiments touching a New way of estimating the {9} Expansive force of
Congelation, and of highly compressing Air without Engines.

13. Experiments and Observations touching the Sphere of Activity of Cold.

14. Experiments touching differing _Mediums_, through which Cold may be
diffused.

15. Experiments and Observations touching Ice.

16. Experiments and Observations touching the duration of Ice and Snow, and
the destroying of them by the Air, and several Liquors.

17. Considerations and Experiments touching the _Primum Frigidum_.

18. Experiments and Observations touching the Coldness and Temperature of
the Air.

19. Of the strange Effects of Cold.

20. Experiments touching the weight of Bodies frozen and unfrozen.

21. Promiscuous Experiments and Observations concerning Cold.

This Treatise will be dispatched within a very short time, and would have
been so, ere this, if the extremity of the late Frost had not stopt the
Press. It will be accompanied with some Discourses of the