In setting up the skeleton a very slight change in location is often necessary to secure perfect adjustment.   It is not necessary to waste your time by explaining this matter, but it would be unfortunate if these perforations in the supports were made by any other than the man who has constructed the replica, and he will know where within a millimeter to locate the opening for the receiption of the steel supports.  I am not without hope upon receipt of the knowledge that the replica has arrived in your capital and that the bases are ready that I may be able to accompany my assistant personally with a view to supervising the erection of the model although my great age precludes exertions which I formerly undertook with nonchalance.  I am warned that I must be a little careful.  Neverthless at the time of writing I feel stong and fit for the journey to Mexico, which it would give me great pleasure to make, if for no other reason that to form a personal acquaintance with you, whom I have come to esteem as a learned, agreeable, and distinguished friend.