Series 1. Lectures on the Science and Art of Rose Breeding undated
Scope and Content Note
1. The Scientific Basis of Rose Breeding undated
2. Chromosome Number in Relation to Rose Breeding undated
3. The Value of Rose Pedigree Studies in Planning a Rose Breeding Program undated
4. The Yellow Rose Breeding Line As of 1935 undated
5. Selection of Varieties as Breeding Plants undated
6. Pollination, Rose Hip Development, Seed Ripening, and Germination undated
7. The Effect of Pollen Parent on Set of Hips Resulting from Cross Pollination undated
8. The Number of Seeds per Cross Pollination undated
9. Roguing, Selections, and Evaluations of Hybrid Rose Seedlings undated
10. Rose Growing in the United States in Relation to Rose Breeding undated
Series 2. Reprints 1929-1960
Scope and Content Note
Series 3. About Walter Lammerts 1953-1962
Scope and Content Note