has reference to the custom, common enough on the western mainland and in some of the Hebrides some fifty years ago, and not altogether unknown perhaps even at the present day, of each maiden's pouring from her cumanbleoghain, or milking-pail, evening and morning, on the fairy knowe a little of the new-drawn milk from the cow, by way of propitiating the favour of the good people, and as a tribute the wisest, it was deemed, and most acceptable that could be rendered, and sooner or later sure to be repaid a thousand-fold. The consequence was that these fairy knolls were clothed with a richer and more beautiful verdure than any other spot, howe or knowe, in the country, and the lacteal riches imbibed by the soil through this custom is even now visible in the vivid emerald green of a shian or fairy knoll whenever it is pointed out to you. This custom of pouring lacteal libations to the fairies on a particular spot deemed sacred to them, was known and practised at some of the summer shielings in Lochaber within the memory of the people now living. CHAPTER IV. Transit of Mercury--Improperly called an "Eclipse" of--November Meteors--Mr. Huggins--Spectrum Analyses of Cometary Light--Translation of a St. Kilda Song. We were early astir on the morning of the 5th November [1868]; with little thought, be sure, of Guy Fawkes or the Gunpowder Plot, intent only on witnessing, if we might be so fortunate, the transit of Mercury over the solar disc. The phenomenon in question we have seen referred to as an "eclipse" of Mercury, which it certainly was not. A celestial body is properly said to be eclipsed when, by the interposition of another and a nearer orb, it is temporarily hid from view. A star or planet so hidden by the body of the moon, for instance, is said to be "occulted." The sun is truly said to be eclipsed when the new moon at a particular conjunction steps in between us and him, and temporarily intercepts his beams. What again, for convenience sake, is called an eclipse of the moon, is really not an eclipse at all, so far at least as the terrestrial spectator is concerned; it would be more strictly correct to call it simply a lunar obscuration. The temporary appearance of Venus and Mercury as circular and sharply defined black spots on the solar disc, has hitherto always, and very properly, been called in the language of astronomers a "transit" of the particular planet by name, such as the "transit of Venus," or the "transit of Mercury;" and there is no reason to change the term, for it is expressive and true, which the word eclipse, applied to such a conjunction, certainly is not.