Howard, L O (Leland Ossian) 1857 1950 books & textbook
Principal Household Insects of the United States..
Howard, L O (Leland Ossian) 1857-1950
Wentworth Press /2016-08-29 Paperback / 144 Pages
isbn-10: 1374497843 / isbn-13: 9781374497849
Preventive and Remedial Work Against Mosquitoes; Volume new ser.: no.88
Howard, L O (Leland Ossian) 1857-1950
Wentworth Press /2016-08-29 Paperback / 130 Pages
isbn-10: 1374258261 / isbn-13: 9781374258266
The Principal Household Insects of the United States; Volume new ser.: no.4
Howard, L O (Leland Ossian) 1857-1950 Chittenden, F H (Frank Hurlbut) 1858- Marlatt, C L
Wentworth Press /2016-08-29 Paperback / 134 Pages
isbn-10: 1374240494 / isbn-13: 9781374240490
The Laws in Force Against Injurious Insects and Foul Brood in the United States; Volume new ser.: no.61
Howard, L O (Leland Ossian) 1857-1950 Burgess, A F (Albert Franklin) 1873-
Wentworth Press /2016-08-29 Paperback / 232 Pages
isbn-10: 1373950773 / isbn-13: 9781373950772
Recent Laws Against Injurious Insects in North America: Together With the Laws Relative to Foul Brood; Volume new ser.: no.13
Howard, L O (Leland Ossian) 1857-1950
Wentworth Press /2016-08-29 Paperback / 70 Pages
isbn-10: 137368254X / isbn-13: 9781373682543
San Jose Scale: Its Occurrence in the United States With a Full Account of Its Life History and the Remedies to Be Used Against It; Volume new ser.: no.3
Howard, L O (Leland Ossian) 1857-1950 Marlatt, C L
Wentworth Press /2016-08-29 Hardcover / 84 Pages
isbn-10: 1373532769 / isbn-13: 9781373532763
Notes on the Mosquitoes of the United States: Giving Some Account of Their Structure and Biology: With Remarks on Remedies; Volume new ser.: no.25
Howard, L O (Leland Ossian) 1857-1950
Wentworth Press /2016-08-28 Hardcover / 80 Pages
isbn-10: 1372988203 / isbn-13: 9781372988202
Some Miscellaneous Results of the Work of the Division of Entomology; Volume new ser.: no.7
Howard, L O (Leland Ossian) 1857-1950
Wentworth Press /2016-08-28 Paperback / 90 Pages
isbn-10: 1372858857 / isbn-13: 9781372858857
The San Jose Scale in 1896-1897; Volume new ser.: no.12
Howard, L O (Leland Ossian) 1857-1950
Wentworth Press /2016-08-28 Paperback / 34 Pages
isbn-10: 1372830545 / isbn-13: 9781372830549
The Importation Into the United States of the Parasites of the Gipsy Moth and the Brown-tail Moth: A Report of Progress, With Some Consideration of ... Efforts of This Kind; Volume new ser.: no.91
Howard, L O (Leland Ossian) 1857-1950 Fiske, W F (William Fuller) 1876-
Wentworth Press /2016-08-28 Paperback / 422 Pages
isbn-10: 137199059X / isbn-13: 9781371990596
