281. Livermore quadrangle, Maine

282. Lockeford quadrangle, California

283. Lógica de la juventud : elementos de lógica o arte de pensar : dispuesto para la primera enseñanza de la juventud

284. Lompoc quadrangle, California

285. Longs Peak quadrangle, Colorado

286. Lolo quadrangle, Idaho Montana

287. Lost Hills quadrangle, California

288. Lowville quadrangle, New York (Lewis county)

289. Lucia quadrangle, California (Monterey county)

290. Lula quadrangle, Mississippi

291. Lyon Mountain quadrangle, New York

292. Macomb quadrangle, Illinois

293. Macon quadrangle, Missouri

294. Madrid quadrangle, Iowa

295. Magdalena District, New Mexico (Socorro county)

296. Maine Prairie quadrangle, California (Solano county)

297. Manhattan quadrangle, Nevada (Nye county)

298. Maní Forrajero (Arachis pintoi Krapovickas y Gregory:una alternativa para el sostenimiento de la ganadería en Panamá.

299. Manteca quadrangle, California (San Joaquin county)

300. Manuel de la liberté de la presse, ou analyse des discussions législatives sur les trois lois relatives á la presse et aux journaux et écrits péridiques... [Texto impreso]