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Creation Date 

1. Before 1700  (15)
2. 1700 To 1909  (11,777)
3. 1910 To 1939  (28,366)
4. 1940 To 1952  (16,745)
5. After 1952  (3,403)
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New Records 

1. New From Last Month  (3)
2. New From Last 3 Month  (7)
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Resource Type 

1. Patents  (50,825)
2. Drawing/Maps  (3,559)
3. Images  (2,340)
4. Articles  (1,491)
5. magazinearticle  (767)
6. Archival Material / Manuscripts  (382)
7. Books  (353)
8. Reports  (171)
9. Videos  (139)
10. Web Resources  (130)
11. Government Documents  (78)
12. Thesises (postgraduate)  (48)
13. Newsletter Articles  (10)
14. Reviews  (6)
15. Text Resources  (1)
16. Other  (1)
17. Book Chapters  (1)
18. Scores  (1)
19. Journals  (1)
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Subject 

1. Fixed Constructions  (47,752)
2. Construction Of Roads, Railways, Or Bridges  (47,749)
3. Permanent Way  (27,227)
4. Permanent-Way Tools  (27,227)
5. Machines For Making Railways Of All Kinds  (27,227)
6. Machines Or Auxiliary Tools For Construction Or Repair  (10,956)
7. Construction Of, Or Surfaces For, Roads, Sports Grounds, Orthe Like  (10,956)
8. Roads  (5,380)
9. Street Cleaning  (4,526)
10. Cleaning Beaches  (4,525)
11. Fog In General  (4,525)
12. Cleaning Of Permanent Ways  (4,525)
13. Dispersing  (4,525)
14. Transporting  (4,398)
15. Performing Operations  (4,398)
16. Vehicles In General  (3,233)
17. Construction Of Bridges  (2,499)
18. Or Viaducts  (2,499)
19. Assembly Of Bridges  (2,499)
20. Conjoint Control Of Vehicle Sub-Units Of Different Type Ordifferent Function  (2,264)
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Databases 

1. esp@cenet  (50,825)
2. David Rumsey Historical Map Collection  (2,839)
3. Europeana Collections  (1,695)
4. ProQuest Central  (1,571)
5. Open Shared Collection  (914)
6. JSTOR Early Journal Content (Open Access)  (599)
7. UMedia  (422)
8. New York Public Library Digital Gallery  (411)
9. HathiTrust Digital Library Full View Worldwide  (336)
10. Japanese Historical Maps  (261)
11. SWEPUB Freely available online  (117)
12. Arts & Humanities Journals (Open access)  (78)
13. HathiTrust Digital Library Full View U.S. Only  (71)
14. PubMed Central  (58)
15. ROAD: Directory of Open Access Scholarly Resources  (58)
16. HighWire Press (Free Journals)  (48)
17. DTIC STINET  (48)
18. DTIC Technical Reports  (48)
19. US Government Documents  (47)
20. AUB ScholarWorks  (45)
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Language 

1. English  (46,472)
2. French  (6,574)
3. German  (5,234)
4. Russian  (1,008)
5. Finnish  (314)
6. Swedish  (123)
7. Dutch  (92)
8. Polish  (82)
9. Danish  (47)
10. Bulgarian  (29)
11. Latin  (10)
12. Spanish  (10)
13. Hungarian  (8)
14. Estonian  (6)
15. Czech  (5)
16. Norwegian  (3)
17. Italian  (3)
18. Japanese  (2)
19. Romanian  (2)
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Journal Title 

1. American Law Register  (31)
2. Barron's  (834)
3. Barron's National Business And Financial Weekly  (270)
4. British Medical Journal  (44)
5. Current History  (104)
6. Monthly Labor Review  (47)
7. Nation's Business  (81)
8. Poetry  (35)
9. The Annals Of The American Academy Of Political And Social Science  (65)
10. The Virginia Law Register  (66)
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