Charles Baird Simpson

OCLC:458876294

Charles Baird Simpson

OCLC:458876298

Charles Baird Simpson

OCLC:458876299

Charles Baird Simpson

UIUC:30112019286621

Agriculture

Charles Baird Simpson

HARVARD:32044107302804

Grasshoppers

Charles Baird Simpson

HARVARD:32044107249823

Apple worm

American Association of Economic Entomologists / Charles Baird Simpson / Francis Marion Webster / Frank Hurlbut Chittenden / Henrietta Aiken Kelly / Nathan Banks / United States. Bureau of Entomology

UIUC:30112009257574

Bulletin (United States. Division of Entomology)

American Association of Economic Entomologists / Charles Baird Simpson / Francis Marion Webster / Frank Hurlbut Chittenden / Henrietta Aiken Kelly

UIUC:30112063828021

Codling moth

OCLC:946195808

Charles Baird Simpson

1359112863 / 9781359112866

Charles Baird Simpson

134707886X / 9781347078860

Charles Baird Simpson

OCLC:299700419

L. Bostock / Charles Baird Simpson

CORNELL:31924018288948

Mosquitoes

Charles Baird Simpson

OCLC:642481803

Charles Baird Simpson

OCLC:1026988459

Codling moth

Charles Baird Simpson

LCCN:09003069

Codling moth

Charles Baird Simpson

OCLC:253029945

Codling moth

Charles Simpson

OCLC:669094290

OCLC:1125643476

Entomology

Andrew Delmar Hopkins / Association of Economic Entomologists / Charles Baird Simpson / Frank Hurlbut Chittenden / Henrietta Aiken Kelly / Leland Ossian Howard / Nathan Banks

LCCN:09003075

Beneficial insects

Altus Lacy Quaintance / Association of Economic Entomologists / Leland Ossian Howard / Walter David Hunter / Charles Thomas Brues / W. E. Hinds

LCCN:agr06000476

Beneficial insects

Charles Baird Simpson / Frank Hurlbut Chittenden / Nathan Banks

OCLC:14644250

Botany

Albert Spear Hitchcock / C. L. Marlatt / Carleton Roy Ball / Charles Baird Simpson / Charles Ford Langworthy / Charles Pinckney Hartley / Charles Vancouver Piper / Clarence Thomas Johnston / D. E. Salmon / George Charles Husmann / Gifford Pinchot / H. P. Gould / Henrietta Aiken Kelly / John Bernhard Smith / John William Adams / Lee Cleveland Corbett / Leland Ossian Howard / Richard West Hickman / Samuel Mills Tracy / Theodore Sherman Palmer / Walter David Hunter / William Edward Rice / William Henry Ragan / Henry Oldys / Jay D. Stannard / C. E. Stannard / Robert White Williams

LCCN:agr07000240

Agriculture

Charles Baird Simpson / United States. Department of Agriculture

OCLC:1402428588

Grasshoppers

Alice Henkel / Altus Lacy Quaintance / Andrew Boss / Archie Howard Kirkland / C. G. Elliott / C. L. Marlatt / Carleton Roy Ball / Charles Baird Simpson / Charles Ford Langworthy / Charles Pinckney Hartley / Charles Sumner Plumb / Edgar Brown / George Charles Husmann / Gifford Pinchot / Helen W. Atwater / Henrietta Aiken Kelly / John Bernhard Smith / John William Adams / Lee Cleveland Corbett / Samuel Mills Tracy / Theodore Sherman Palmer / Thomas Fletcher McGrew / W. H. Beal / Walter David Hunter / William Edward Rice / Henry Oldys / Robert White Williams

LCCN:agr07000240

Agriculture

Andrew Delmar Hopkins / Association of Economic Entomologists / Charles Baird Simpson / Francis Marion Webster / Frank Hurlbut Chittenden / Leland Ossian Howard / Orator Fuller Cook / Walter David Hunter / W. E. Hinds

LCCN:09003091

Beneficial insects

American Association of Economic Entomologists / Charles Baird Simpson / Henrietta Aiken Kelly

UIUC:30112017670933

Codling moth

American Association of Economic Entomologists / Charles Baird Simpson / Francis Marion Webster / Frank Hurlbut Chittenden / Henrietta Aiken Kelly

UIUC:30112063828021

Codling moth

Charles Baird Simpson

HARVARD:32044107249823

Apple worm

Charles Baird Simpson

MINN:30000010161614

Agriculture