Observationes Cyclometricae by Adam Adamandy Kochański - Latin text with annotated English translation
Observationes generales circa series, quarum termini secundum sinus vel cosinus angulorum multiplorum progrediuntur
Observations on a certain theorem of Fermat and on others concerning prime numbers
Observations on two fourth powers whose sum is equal to the sum of two other fourth powers
Odd One Out
On a curious property of 3435
On a new type of rational and highly convergent series, by which the ratio of the circumference to the diameter is able to be expressed
On amicable numbers
On Amicable Numbers With Different Parity
On Bernoulli Numbers and Its Properties
On Categorical Theory-Building: Beyond the Formal
On Fermat's marginal note: a suggestion
On highly transcendental quantities which cannot be expressed by integral formulas
On Jordan's measurements
On Pasting and Reversing operations over some rings
On physical diffusion and stochastic diffusion
On projective two-dimensional Finsler spaces with special metric
On the babylonian method of extracting root squares
On the Church-Turing thesis
On the construction of a triangle from the feet of its angle bisectors