Snetzler (Herr), [20], [21].

Struve (Otto von), [129].

Thomson (Thomas), [95].

Verdet (E.), [188].

Wainwright (Dr.), [20].

Walsh (Colonel), [62].

Watson (Sir William), [44], [58], [60], [64], [65], [66], [67], [75], [76].

Watt (James), [106].

Weld (R.), [126].

Wilson (Alexander), [52], [94], [146].