Haydn's 88th Symphony in G was completed in 1787 and, although it doesn't have a knickname like some other symphonies, it is nevertheless among his best-known. It has been performed by many orchestras world-wide and conducted by many famous conductors including Leonard Bernstein whose performance you can find on youtube. The Symphony is in many ways typical of Haydn's style and brimful of melody and energy, sustaining a mood of unabashed joy of life throughout its 4 movements. This is the first movement which begins with a slow introduction before the main movement kicks in with a lively tempo. Here is the Conductor's Full Score and all the instrumental parts as follows: 1 Flute, 2 Oboes, 2 Bassoons, 2 Horns (in G), 1st Violins, 2nd Violins, Violas, Cellos, and Basses (largely doubling the cellos). The video below illustrates the music with a graphical animation in piano roll style, or below that you can play the mp3 file and see the sheet music score before downloading.
Here is a video of Haydn's Symphony No.88 (1st movement) score:
The image below is the first page of the sheet music, and here you can download the full sheet music for Haydn's Symphony No.88 (1st movement) score in PDF format.