Plate, figures 1-9 showing nebulae and stars by Mitchell, B [Bindon Blood] Stoney, and S Hunter Early version of figures 1-9 from plate XXV showing nine nebulae discussed in Parsons' paper. The nebulae are drawn in graphite. Figures 1, 3-4, and 8-9 were drawn by Mitchell, figures 2 and 5-6 by Stoney, and figure 7 by Hunter. The nebulae correspond, respectively, to numbers 15, 156, 232, 241-242, 262, 311, 315, and 327 in William Herschel's catalogue of nebulae. Later versions of these figures are found at PT/62/8/43. Subject: Scientific Instruments / Astronomy Published in Philosophical Transactions as 'On the construction of specula of six-feet aperture; and a selection from the observations of nebulæ made with them'. Received by the Royal Society on 5 June 1861. Read 20 June 1861. [1861]