The Windsor amateur astronomer, John Tebbutt, had a ceased observing in 1907. However, in 1909, at the age of 75, he came out of retirement to observe Halley’s comet and his astrometric positions were published in the Monthly Notices of the Royal Astronomical Society. These data were used, together with most published observations from the 1835 and 1910 apparitions, for the computation of Halley’s orbit for ESA’s Halley intercept spacecraft, Giotto. A detailed analysis of the observations have shown minor imperfections that, when corrected, gave rms errors of 3''.5 arc in right ascension and 2''.8 in declination. His systematic errors are negligible at the 0''.2 level.

Observations of 21 cm HI emission-line profiles have been made in 34 directions from l= 172° through 0° to l=97° at high galactic latitudes and in 59 directions towards the LMC (b~ –33°) with the aim of detecting low-intensity halo features which may be compared with other element features of similar radial velocities detected by ultraviolet or optical absorption lines. Data are presented as spectra and tables of the parameters: radial velocities, line temperatures, halfwidths and column densities. Spectra of both low-intensity (halo) and high-intensity components are given for 48 positions in three tracks across the LMC.

Features near radial velocities –48 and +58 km s -1 are found in all the directions examined, whereas significant numbers of features grouped around average radial velocities + 112, +160 and +373 km s-1 (Isr) are found only in the directions of the LMC.

Using the HI column densities as references, we have estimated depletions in the abundances of calcium and sodium in the halo, spiral arms and the LMC disk. In one direction towards the LMC depletions in the halo features of carbon, nitrogen, oxygen, magnesium, aluminium, silicon and iron (from International Ultraviolet Explorer (IUE) satellite data) have also been estimated.