there is some
kind of _Libration_ of the Moon's body, so that we have not precisely just
the same part of it looking towards us; (as is evident by _Hevelius_
observations, and others;) yet is there no Revolution upon its Axis; the
same part of it, with very little alteration, always respecting us, as is
to be seen in _Hevelius_ his Tratise _de Motu Lunae Libratorio_, and indeed,
by all those who have written particularly of the spots on the Moon; and is
universally known to all that have with any curiosity viewed it with
Telescopes.

* * * * *

_Of some Philosophical and curious Books, that are shortly to come abroad._

1. Of the _Origine_ of _Forms_ and _Qualities_, deduced from _Mechanical_
Principles; by the Honorable _Robert Boyle_ Esq.

2. _Hydrostatical Paradoxes_, by the same. Both in _English_.

3. A Tract of the _Origine_ of the _Nile_, by Monsieur _Isaac Vossius_,
opposed to that of Monsieur _de la Chambre_, who is maintaining, That
_Niter_ is the principal cause of the Inundation of that River.

4. A Dissertation of _Vipers_, by _Signor Redi_, an _Italian_.

5. A Discourse of the _Anatomy_ of _a Lyon_, by the same.

6. Another, _De Figuris Salium_, by the same.

7. A Narration of the Establishment of the _Lyncei_, an _Italian_ Academy,
and of their Design and Statutes: the Prince _Cesi_ being the Head of them,
who did also intend to establish such Philosophical Societies in all parts
of the World, and particularly in _Africa_ and _America_, to be by that
means well informed of what considerable productions of Nature were to be
found in those parts. The Author yet _Anonymus_.

8. To these I shall add, a Book newly Printed in _Oxford_ (and not yet
dispersed) being, _A Catalogue of Fixed Stars_ with their _Longitudes,
Latitudes, and Magnitudes_, according to the _Observations_ of _Uleg-Beig_
(a King, and famous Astronomer, who was _Great-Grand-childe_ to the famous
{146} _Tamerlane_, and one of his Successors in some of his Kingdoms) made
at _Samarcand_, his cheief seat, (for the year of the Hegira 841, for the
year of Christ 1427), who not finding the _Tables_ of _Ptolemy_ to agree
sufficiently with the Heavens, did with great diligence, and expense, make
observations anew; as _Tycho Brahe_ hath since done. It is a small part of
a larger _Astronomical Treatise_ of his, whereof there be divers _Persian_
Manuscript Copies in _Oxford_. Out of which this is Translated and
Pu