Outline (unformatted, minor spoilers)
This is intended to be printed as a bookmark with enough room to add your own landmarks. (Copy to wordprocessor, add columns, etc.)
There are 70 'chapters' (I didn't mean to number from zero, if someone has a quick way to fix this please do) averaging 15 pages each, and 467 sections averaging 2 pages. (About a half-million words, 2.5Mb, almost twice as long as Ulysses.) The code "IA1-3" means Book I, chapter A has 1 section, starting on page 3. Years are omitted if there's no solid dating (yet).
If you make an improved version please post it separately because not everyone needs the same features.
1 IA1-3 Chums, aloft, 1893, Dick Counterfly
2 IB2-10 Chums, Chgo, 1893, stockyards
3 IC2-21 Chums, Chgo, 1893, White City
4 ID3-26 Chums, Chgo, 1893, Merle, Vibe
5 IE2-36 Chums, Chgo, 1893, Lew, Drave
6 IF6-45 Lew, Chgo, 1893, Moss
7 IG6-57 Merle, Ohio, 1887, Blinky, Skip
8 IH2-81 Webb, Telluride, 1901, Veikko, Mayva
9 II3-97 Kit, Col. Spgs, 1899, Foley
10 IJ6-107 Chums, Indian Ocean, 1899, Chthonica
11 IIA7-121 Chums/Hunter, Arctic, 1899, Padzh.
12 IIB2-138 Fleetwood, Arctic, 1899, Beast
13 IIC1-149 Hunter, NYC, 1899, Beast
14 IID4-156 Kit, Yale, 1899, Vibe, Colfax
15 IIE6-171 Lew, Denver, 1900, KK, Cyclomite, N+N
16 IIF8-189 Webb, Telluride, 1902, Lake, Deuce, Sloat
17 IIG6-199 Reef, Nochecita, 1903, Stray, Frank
18 IIH6-209 Reef, Jeshimon, 1903, Webb, Telluride
19 III3-219 Lew, TWIT, 1900, N+N, Yashmeen, tarot
20 IIJ4-233 Lew, TWIT, 1901, Renfrew, Bomber
21 IIK6-243 Chums, Venice, 1902, Itinerary, Campanile
22 IIL12-260 Lake, Telluride, 1903, Deuce, Willis, Sloat
23 IIM3-273 Frank, Leadville, Wren, Aztlan
24 IIN3-281 Frank, Telluride, Meldrum, Merle
25 IIO3-296 Frank, Hellkite, 1903, Merle, Dally
26 IIP6-318 Kit, Yale/NY, 1903, Colfax, Vibe
27 IIQ6-336 Dally, NYC, 1903, RW, Zombinis
28 IIR8-358 Reef, NOLa, Stray, Wolfe, Flaco
29 IIS7-374 Frank, Mexico, Ewball, Estrella
30 IIT2-397 Chums, NYC, Plug, Zoot
31 IIU2-406 Chums, Candlebrow, Alonzo, Ace
32 IIIA3-431 Chums, Asia, Gasper, Sands
33 IIIB3-449 Merle, Candlebrow, Roswell
34 IIIC4-460 Frank, swUSA, bikers, Mayva
35 IIID11-472 Deuce/Lake, MO, Tace Boilster
36 IIIE13-489 Yashmeen/Cyprian, TWIT, blondes
37 IIIF12-505 Dally/Kit, Stupendica, Root
38 IIIG6-525 Kit, Ostend, Pleiade, mayo
39 IIIH1-548 Chums, Belgium, Thorn
40 IIII6-557 Kit, Ostend, Qweapon, Umeki
41 IIIJ8-568 Dally, Venice, 1905, Hunter, Tancredi
42 IIIK6-588 Kit, Gottingen, 1905, Yashmeen
43 IIIL2-605 Lew, London, Aychrome, Replevin
44 IIIM8-615 Kit, Gottingen, Yashmeen, Swome
45 IIIN3-637 Frank, Mexico, Ewball, Dwayne
46 IIIO4-644 Frank, Texas, Stray
47 IIIP4-652 Reef, Austria, Flaco, Tatzelwurms
48 IIIQ5-661 Kit, Switz., Yashmeen, Reef
49 IIIR7-678 Lew, London, Werfner, Renfrew
50 IVA8-687 Cyprian, Trieste, M+G, Theign
51 IVB5-712 Cyprian, Vienna<, Yashmeenbr>
52 IVC14-724 Kit, Venice, Vibe, Reef, Tanacredi
53 IVD12-748 Kit, Bukhara, Halfcourt, Prance
54 IVE6-768 Kit, Irkutsk, Prance
55 IVF14-779 Kit, Tuva, 1908, Fleetwood
56 IVG8-792
57 IVH10-806
58 IVI17-821
59 IVJ8-849
60 IVK17-864
61 IVL8-892
62 IVM6-908
63 IVN7-919
64 IVO29-931
65 IVP1-976
66 IVQ9-982
67 IVR11-1000
68 IVS9-1018
69 IVT14-1040
70 VA10-1065