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This photograph, provided by the Center for Diseas

This photograph, provided by the Center for Diseas

This October 1947 photograph was provided by the C

This October 1947 photograph was provided by the C

This historical image was provided by the Center f

This historical image was provided by the Center f

This historical image was provided by the Center f

This historical image was provided by the Center f

This October, 1951 photograph was provided by the

This October, 1951 photograph was provided by the

Northern Shovelers (Anas clypeata)

Northern Shovelers (Anas clypeata)

Depicted here in this historic image, was a report

Depicted here in this historic image, was a report

This historical image was provided by the Center f

This historical image was provided by the Center f

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

This historical photograph was provided by the Cen

This historical photograph was provided by the Cen

This historic image depicted an industrial hygieni

This historic image depicted an industrial hygieni

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

This 1947 historical photograph was provided by th

This 1947 historical photograph was provided by th

This October 1947 photograph was provided by the C

This October 1947 photograph was provided by the C

This historical image, which was provided by the C

This historical image, which was provided by the C

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

This historical image was provided by the Center f

This historical image was provided by the Center f

This historic image, provided by the Center for Di

This historic image, provided by the Center for Di

Paddlefish Juveniles

Paddlefish Juveniles

This historical image was provided by the Center f

This historical image was provided by the Center f

Frozen Capitol Reflecting Pool

Frozen Capitol Reflecting Pool

April 18, 2013 - P3 Design Expo, Cornell University

April 18, 2013 - P3 Design Expo, Cornell University

Provided by the Center for Disease Control's (CDC)

Provided by the Center for Disease Control's (CDC)

This historical image was provided by the Center f

This historical image was provided by the Center f

This historic 1917 photograph depicted a number of

This historic 1917 photograph depicted a number of

This 2004 photograph depicted the entrance to a Ni

This 2004 photograph depicted the entrance to a Ni

Embryo

This November, 1943 photograph was provided by the

This November, 1943 photograph was provided by the

This historical photograph was provided by the Cen

This historical photograph was provided by the Cen

From approximately 1940, this historical photograp

From approximately 1940, this historical photograp

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