11 pages; includes photographs. This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu
15 pages; includes charts, illustrations, maps and photographsThis archival publication may not refl...
This archival publication may not reflect current scientific knowledge or recommendations. Current i...
Published May 1917. Facts and recommendations in this publication may no longer be valid. Please loo...
8 pages; includes photographs. This archival publication may not reflect current scientific knowledg...
12 pages; includes photographs. This archival publication may not reflect current scientific knowled...
20 pages; includes photographs. This archival publication may not reflect current scientific knowled...
12 pages; includes photographs. This archival publication may not reflect current scientific knowled...
20 pages; includes photographs and drawings. This archival publication may not reflect current scien...
16 pages; includes photographs. This archival publication may not reflect current scientific knowled...
12 pages; includes photographs. This archival publication may not reflect current scientific knowled...
33 pages; includes photographsThis archival publication may not reflect current scientific knowledge...
This archival publication may not reflect current scientific knowledge or recommendations. Current i...
15 pages; includes photographs. This archival publication may not reflect current scientific knowled...
16 pages; includes photographs. This archival publication may not reflect current scientific knowled...
78 pages; includes chart, diagram and mapsThis archival publication may not reflect current scientif...
15 pages; includes charts, illustrations, maps and photographsThis archival publication may not refl...
This archival publication may not reflect current scientific knowledge or recommendations. Current i...
Published May 1917. Facts and recommendations in this publication may no longer be valid. Please loo...
8 pages; includes photographs. This archival publication may not reflect current scientific knowledg...
12 pages; includes photographs. This archival publication may not reflect current scientific knowled...
20 pages; includes photographs. This archival publication may not reflect current scientific knowled...
12 pages; includes photographs. This archival publication may not reflect current scientific knowled...
20 pages; includes photographs and drawings. This archival publication may not reflect current scien...
16 pages; includes photographs. This archival publication may not reflect current scientific knowled...
12 pages; includes photographs. This archival publication may not reflect current scientific knowled...
33 pages; includes photographsThis archival publication may not reflect current scientific knowledge...
This archival publication may not reflect current scientific knowledge or recommendations. Current i...
15 pages; includes photographs. This archival publication may not reflect current scientific knowled...
16 pages; includes photographs. This archival publication may not reflect current scientific knowled...
78 pages; includes chart, diagram and mapsThis archival publication may not reflect current scientif...
15 pages; includes charts, illustrations, maps and photographsThis archival publication may not refl...
This archival publication may not reflect current scientific knowledge or recommendations. Current i...
Published May 1917. Facts and recommendations in this publication may no longer be valid. Please loo...