1 california institute of technology

2 massachusetts institute of technology

2 stanford university

4 university of california--berkeley

5 columbia university

5 university of michigan--ann arbor

7 pennsylvania state university--university park

8 university of arizona

9 harvard university

9 university of texas--austin

11 princeton university

11 university of california--los angeles

11 university of washington

11 yale university

15 cornell university

15 university of california--san diego

15 university of chicago

15 university of wisconsin--madison

19 brown university

19 university of california--santa cruz

21 johns hopkins university

21 university of california--davis

21 university of california--santa barbara

21 university of minnesota--twin cities

25 rice university

25 university of colorado--boulder

25 washington university in st. louis

28 suny--stony brook

28 university of southern california

28 virginia tech

31 arizona state university

31 colorado school of mines

31 northwestern university

34 duke university

34 indiana university--bloomington

34 texas a&m university--college station

34 university of illinois--urbana-champaign

38 university of hawaii--manoa

38 university of maryland--college park

38 university of new mexico

38 university of oregon

43 ohio state university

43 oregon state university

43 purdue university--west lafayette

43 university of miami

43 university of rhode island

43 university of utah

49 dartmouth college

49 lehigh university

49 new mexico institute of mining and technology

49 university of massachusetts--amherst

49 university of north carolina--chapel hill

49 university of wyoming

55 boston university

55 georgia institute of technology

55 university of alaska--fairbanks

55 university of kansas

55 university of oklahoma

60 louisiana state university

60 rensselaer polytechnic institute

60 suny--binghamton

60 university of california--riverside

60 university of florida

60 university of nevada--reno

60 university of rochester

67 university of georgia

67 university of pennsylvania

67 university of south carolina columbia

70 colorado state university

70 florida state university

70 michigan state university

70 university of illinois--chicago

70 university of iowa

70 university of nebraska--lincoln

70 university of tennessee--knoxville

77 michigan technological university

77 university of cincinnati

77 university of missouri--columbia

77 university of new hampshire

77 university of notre dame