O instrument contrived by him, illustrative of rotation
O IV temperature determination for NGC 7662
O Lacaille's catalogue of 398 stars
O large object-glasses finished by him
O large object-glasses finished by him
O Line Digital Correlation of Photon Counting TV Images for Stellar Interferometry
O Mayer's zodiacal catalogue
O Meteors and Rainfall.
O Mr. Babbage's new machine for calculating and printing mathematical and astronomical tables, from Fr. Baily
O Mr. Dollond's improvement in the micrometer
O Mr. Pond's catalogue of 720 stars
O Napier's five circular parts
O observing the eclipses of Jupiter's satellites at sea
O occultations and eclipses observed at Palermo
O occultations observed at Boston
O occultations of Aldebaran at Altona
O pendulum experiments
O random walk de Lévy aplicado aos mapas de variâncias
O several double stars
O small variable star in Serpens