—­Enough not to make too many mistakes.  The best way is to ask some expert before one risks himself very far in illustrations from a branch he does not know much about.  Suppose, for instance, I wanted to use the double star to illustrate anything, say the relation of two human souls to each other, what would I—­do?  Why, I would ask our young friend there to let me look at one of those loving celestial pairs through his telescope, and I don’t doubt he’d let me do so, and tell me their names and all I wanted to know about them.

—­I should be most happy to show any of the double stars or whatever else there might be to see in the heavens to any of our friends at this table,—­the young man said, so cordially and kindly that it was a real invitation.

—­Show us the man in the moon,—­said That Boy.—–­I should so like to see a double star!—­said Scheherezade, with a very pretty air of smiling modesty.

—­Will you go, if we make up a party?—­I asked the Master.

—­A cold in the head lasts me from three to five days,—­answered the Master.—­I am not so very fond of being out in the dew like Nebuchadnezzar:  that will do for you young folks.

—­I suppose I must be one of the young folks, not so young as our Scheherezade, nor so old as the Capitalist,—­young enough at any rate to want to be of the party.  So we agreed that on some fair night when the Astronomer should tell us that there was to be a fine show in the skies, we would make up a party and go to the Observatory.  I asked the Scarabee whether he would not like to make one of us.

—­Out of the question, sir, out of the question.  I am altogether too much occupied with an important scientific investigation to devote any considerable part of an evening to star-gazing.

—­Oh, indeed,—­said I,—­and may I venture to ask on what particular point you are engaged just at present?

-Certainly, sir, you may.  It is, I suppose, as difficult and important a matter to be investigated as often comes before a student of natural history.  I wish to settle the point once for all whether the Pediculus Mellitae is or is not the larva of Meloe.

[—­Now is n’t this the drollest world to live in that one could imagine, short of being in a fit of delirium tremens?  Here is a fellow-creature of mine and yours who is asked to see all the glories of the firmament brought close to him, and he is too busy with a little unmentionable parasite that infests the bristly surface of a bee to spare an hour or two of a single evening for the splendors of the universe!  I must get a peep through that microscope of his and see the pediculus which occupies a larger space in his mental vision than the midnight march of the solar systems.—–­The creature, the human one, I mean, interests me.]

—­I am very curious,—­I said,—­about that pediculus melittae,—­(just as if I knew a good deal about the little wretch and wanted to know more, whereas I had never heard him spoken of before, to my knowledge,)—­could you let me have a sight of him in your microscope?