...no journals in those days...
The earliest magazine appears to have been the German Erbauliche Monaths-Unterredungen (1663-68; "Edifying Monthly Discussions"), started by Johann Rist, a theologian and poet of Hamburg. Soon after there appeared a group of learned periodicals: the Journal des Sçavans (later Journal des Savants; 1665), started in France by the author Denis de Sallo; the Philosophical Transactions (1665) of the Royal Society in England; and the Giornale de' letterati (1668), published in Italy and issued by the scholar and ecclesiastic Francesco Nazzari. A similar journal was started in Germany a little later, the Acta eruditorum Lipsiensium (Leipzig; 1682); and mention may also be made of the exile-French Nouvelles de la République des Lettres (1684), published by the philosopher Pierre Bayle mainly in Holland to escape censorship. These sprang from the revival of learning, the need to review its fruits, and the wish to diffuse its spirit as widely as possible.
Source: Encyclopedia Brittanica 1994
...the inequality in the motion of Jupiter and Saturn...
In the 17th century observers noticed an increase in orbital velocity of the planet Jupiter and a deceleration of the planet Saturn. It was unclear if this phenomenon was part of a larger cyclic variation in the orbital speed of both planets or that it would end in a head-on collision of Jupiter with the sun and Saturn leaving the solar system.
In 1748 the Academy of Sciences in Paris announced a prize for the best memoir on A Theory of Saturn and of Jupiter, by which one can explain the inequalities that the two planets appear to cause in each other's motion, principally near the time of their conjunction
Source: Stigler (1986)
Some remarks on the work of Euler and Laplace
William Browne
Sir William Browne (1692-1774), studied medicine at Cambridge, became an eminent physician and was elected President of the Royal College of Physicians in 1765. He kept a commonplace book from 1708 until 1774. He directed the engraving of the dies for a medal to be presented to Cambridge undergraduates for classical odes and epigrams. The first was awarded in 1775.
He wrote an introduction for David Gregory's (1661-1708) Elements of catoptrics and dioptrics : To which is added, I. A method for finding the foci of all specula as well as lens's universally ... II. A solution of those problems which are left undemonstrated. III. A particular account of microscopes and telescopes, from Mr. Huygens / With an introduction shewing the discoveries made by catoptrics and dioptrics. By W. Browne that was published in 1715.

On George I's Donation of the Bishop of Ely's Library to Cambridge University
- Joseph Trapp (1679-1747)
The King, observing with judicious eyes,
The state of both his universities,
To Oxford sent a troop of horse, for why?
That learned body wanted loyalty;
To Cambridge books, as very well discerning
How much that loyal body wanted learning.
- Sir William Browne, Reply to Trapp's epigram
The King to Oxford sent a troop of horse,
For Tories own no argument but force.
With equal skill to Cambridge books he sent
For Whigs admit no force but argument.