The other day at my board game group, we were discussing RPGs in general, and D&D in particular with a new guy, Dave. Someone mentioned that OD&D only had rules for combat. Of course that's pattently wrong.
Today I went through the LBBs (on .pdf, don't have the real thing, unfortunately). Here's what I found.
In Men & Magic, there are about 4 digest size pages worth of combat rules (counting the weapon lists). Monsters & Treasure has 0 rules of combat, although I suppose the monster listings count. Maybe I should go back through that for completeness. Maybe not. Anyway, Underworld & Wilderness Adventures has 10 digest size pages of combat rules, including mass battles, sea battles, and aerial battles. There are 22 digest size pages of exploration rules.
So that's 11 pages of exploration rules, 7 pages of combat rules.