UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication
UMN College of Science and Engineering:
2014 National Historic Chemical Landmark Dedication