Superb, authoritative editions (Henry Litolff's Verlag) of great orchestral masterworks: Symphony No. 5 in C Minor, Op. 67; Symphony No. 6 in F Major ("Pastoral"), Op. 68; Symphony No. 7 in A Major, Op. 92. Lists of instruments.
Here's a sample of other books in this Dover category
Missa Solemnis in Full Score by Ludwig van Beethoven Masterpiece of sacred music structured around the Ordinary of the Catholic Mass. Sublime vision of faith — both personal and universal. Authoritative Breitkopf & Härtel edition. Translation of texts.
The Four Orchestral Suites by Johann Sebastian Bach Suite No. 1 in C Major, Suite No. 2 in B Minor, Suite No. 3 in D Major, and Suite No. 4 in D Major. Bach-Gesellschaft edition. Instrumentation. Notes.
La Mer (the Sea): Three Symphonic Sketches by Claude Debussy A complex and hypnotic masterpiece of orchestral texture, La Mer (The Sea) features marvelously fluid rhythm and shimmering evocations of light, color, and the sea itself.
Requiem in Full Score by Giuseppe Verdi Considered by many to be Verdi's finest composition, this highly dramatic work is a tour de force of melodic invention, technical mastery, and virtuoso orchestration.
Symphony No. 1 in D Major : "Titan" by Gustav Mahler Vividly orchestrated, with innovative symphonic structure and rich emotional expression, this full score edition is ideal for study at home, in the classroom or the concert hall.
Petrushka by Igor Stravinsky Twentieth-century masterpiece, brilliantly orchestrated, with Russian folksong and new, striking harmonies. General Note. Stage Directions. Instrumentation. All French and English materials newly translated.
Symphonies Nos. 1 and 2 in Full Score by Franz Schubert Written when the composer was only 16, Schubert's First Symphony abounds with the promise of a young genius. His Second Symphony, created the following year, embodies the great Viennese classical traditions.