Someone like Martin Andersson or Phillip Ellis (Ningauble and ghyle of Chrons, respectively) would know more about this than I, as they are themselves Lovecraftian scholars; but, to the best of my knowledge, such is unlikely to happen any time soon. According to Joshi's note on volume 3 of the
Collected Essays (which brings together HPL's writings on science):
For a variety of reasons it has proven impracticable to reproduce some of Lovecraft's unpublished juvenile scientific works. These include the following (all are found in the H. P. Lovecraft Papers at the John Hay Library, Brown University):
The Art of Fusion, Melting, Pudling & Casting (1899?)
Chemistry (1899?; 4 vols.)
A Good Anaesthetic (1899?)
The Railroad Review (December 1901)
The Scientific Gazette (1903-04; 32 issues)
Astronomy: The Monthly Almanack (1903-04; 9 issues)
The Planet (29 August 1903)
The Rhode Island Journal of Astronomy (1903-09; 69 issues)
Annals of the Providence Observatory (1904)
Providence Observatory Forecast (5 April 1904)
The Science Library (1904?; 3 vols.)
Publication of these works would require costly and difficult reproduction in facsimile to capture the full flavour of the originals; in some cases, such reproduction would itself be problematic because of the faded and otherwise damaged condition of the originals. It is hoped, nonetheless, that publication of this sort might at some future date be deemed feasible.
However, that volume does include a fair number of his juvenile works, such as "My Opinions on the Lunar Canals" (1903?), No Transit of Mars (3 June 1906), Trans-Neptunian Planets (25 August 1906);
The Moon (rev. 24 July 1906); etc., in at least one case with the original illustrations; as well as his various astronomical columns for papers such as the
Pawtuxet Valley Gleaner (1906-1908; only those for 1906 are, apparently, still extant),
The [Providence]
Tribune,
The [Providence]
Evening News, and so forth -- and these also include the original (hand-drawn) illustrations.
While not for everyone, for those interested in the minutiae of Lovecraft's life and work, these essays have a wealth of fascinating material. You can, for instance, see his early proposal of his cosmic viewpoint in "The Fixed Stars" (
PVG, 7 December 1906), or possible influences on his development of "Polaris" in his controversy with astronomer J. F. Hartmann -- just as other volumes in the series also indicate possible sparks for various of his works.
All that aside, thank you
very much, rkukan, for bringing this in. As one thoroughly fascinated by even the most minuscule aspect of Lovecraftian scholarship, I certainly appreciate having this added to my store....