Preliminary draft of title page (final report). Report No. 12l(1), USSBS Index Section 2

Preliminary draft of final report. Report No. 40a(1), USSBS Index Section 2

Preliminary draft of final report on construction. Report No. 37a(1), USSBS Index Section 2

Preliminary draft of final report on railroads. Report No. 54m(1), USSBS Index Section 2

Preliminary draft of Chapter I, introduction to final report of medical division. Report No. 12l(9), USSBS Index Section 2

Preliminary draft of list of illustrations. Report No. 12l(4), USSBS Index Section 2

Preliminary draft of list of appendices. Report No. 12l(6), USSBS Index Section 2

Preliminary draft of table of contents. Report No. 12l(3), USSBS Index Section 2

Preliminary draft of list of tables. Report No. 12l(5), USSBS Index Section 2

Preliminary report-draft. Report No. 90b(1), USSBS Index Section 2

Preliminary report-draft. Report No. 91d(1), USSBS Index Section 2

Preliminary report-draft. Report No. 92p(1), USSBS Index Section 2

Preliminary report-draft. Report No. 95c(1), USSBS Index Section 2

Preliminary report-draft. Report No. 92e(1), USSBS Index Section 2

Preliminary draft. Report No. 2a, USSBS Index Section 2

Preliminary report-draft. Report No. 93g(2), USSBS Index Section 2

Preliminary report-draft. Report No. 93h(2), USSBS Index Section 2

Preliminary report-draft. Report No. 93b(2), USSBS Index Section 2

Preliminary report-draft. Report No. 93e(2), USSBS Index Section 2

Preliminary report(draft). Report No. 60h(2), USSBS Index Section 2

Preliminary report-draft. Report No. 93d(2), USSBS Index Section 2

Preliminary report-draft. Report No. 93f(2), USSBS Index Section 2

Preliminary draft. Report No. 93c(2), USSBS Index Section 2

List of chapters (final arrangement). Report No. 12l(2), USSBS Index Section 2

Final report and 5 preliminary drafts. Report No. 3g(1), USSBS Index Section 2