diff --git a/misc/aqp-spellcheck-allowed.csv b/misc/aqp-spellcheck-allowed.csv
new file mode 100644
index 000000000..d25eab88b
--- /dev/null
+++ b/misc/aqp-spellcheck-allowed.csv
@@ -0,0 +1,429 @@
+x
+acomp
+Adatte
+addBracket
+addVolumeFraction
+Ahwahnee
+Aitchison
+al
+Amonette
+amonium
+Amundson
+Andesite
+andesitic
+Andesitic
+andic
+andisol
+Andisol
+andisols
+Andisols
+antigorite
+aov
+Ap
+arenic
+argillic
+attr
+Auberry
+Barcel'o
+Bas
+bbox
+biogeochemistry
+Biometrika
+Bish
+Boettinger
+Bourgault
+Brauer
+Brunizem
+Brus
+Bt
+Buntley
+Burrough
+Busacca
+Bw
+CaCl
+cageo
+cambic
+Cambic
+Carre
+CARRE
+casoilresource
+catenary
+CEC
+Centore
+centroid
+Centroid
+centroids
+chamosite
+checkHzDepthLogic
+Chernozem
+Chipera
+chr
+chroma
+Chroma
+chromas
+chronosequence
+CIE
+CIELAB
+Claassen
+Climosequence
+clinochlore
+CMD
+cmol
+coeficient
+colorBucket
+colorContrast
+ColorMunki
+colorscience
+colorspace
+colour
+Colour
+compositional
+Compositional
+containingMunsell
+contrastClass
+coords
+cpm
+CRS
+CuCl
+Dahlgren
+DCB
+ddply
+dE
+debeaudette
+denormalization
+Denormalization
+denormalize
+denormalized
+densic
+depthcols
+depthLogic
+depthSlices
+desgn
+df
+dH
+dirichlet
+dithionite
+doi
+DOI
+doMC
+dop
+doSMP
+dplyr
+Duplicte
+dV
+EDTA
+edu
+Egozcue
+ellps
+eluvial
+eluviation
+env
+epipedon
+estimateSoilDepth
+et
+extractable
+farver
+foreach
+formular
+fragipans
+fragvoltot
+frameify
+FS
+FULLPAT
+Gaans
+genhz
+Genuchten
+geo
+Geochemical
+geoderma
+Geoderma
+Geosciences
+getArgillicBounds
+getMineralSoilSurfaceDepth
+getPlowLayerDepth
+getSoilDepthClass
+getSurfaceHorizonDepth
+Girard
+github
+Github
+Glahn
+GLenn
+Gley
+glom
+glomalin
+GLS
+glycoprotein
+Godsey
+goethite
+Gower's
+gradational
+granodiorite
+greyscale
+grossarenic
+GRS
+Grunwald
+grv
+GRV
+harmonizations
+HD
+Heuvelink
+hgroup
+Hilger
+Hmisc
+Honcut
+Hootsmans
+horizonation
+horizonNames
+HSD
+http
+https
+huePosition
+hydric
+hz
+hzdepb
+hzdept
+hzDepthTest
+hzdesgn
+hzdesgncol
+hzID
+hzidcol
+hzidname
+hzname
+hztexclcol
+hzTransitionProbabilities
+idcol
+idname
+illuminant
+illuvial
+illuviation
+init
+initSoilProfileList
+ISPRS
+ISSN
+Jetse
+Jos
+KCl
+KCL
+Kearney
+Kempen
+knitr
+kPa
+Kubelka
+Lahar
+landform
+lawr
+Leij
+levelplot
+LFS
+lithic
+lithologic
+llply
+longlat
+Lowndes
+lpp
+LPP
+MAAT
+magrittr
+manganiferous
+Manganiferous
+Matsuyama
+McGahan
+mds
+MDS
+melanization
+Melanization
+missingDataGrid
+missingDepth
+MLRA
+mollic
+Mollic
+mollisols
+Mollisols
+montmorillonite
+morphologic
+Morphologic
+mpspline
+multinominal
+Multinominal
+Munk
+munsell
+Munsell
+MunsellBookOfColorGlossy
+munsellinterpol
+Musick
+mycorrhizal
+na
+naïve
+NAD
+Naesset
+naeve
+NASIS
+ncss
+NCSS
+Nemecek
+nm
+nMDS
+nontronite
+Nostra
+nrcs
+NRCS
+nrow
+NSE
+NSSL
+num
+O'Geen
+OAc
+oc
+OSACA
+overlapOrGap
+oxalate
+Padarian
+pam
+Pantone
+paralithic
+parseHSD
+Pawlowsky
+pedogenic
+pedology
+Pedology
+pedometric
+pedon
+pedonPC
+PedonPC
+pedons
+pedotransfer
+Perrone
+Photogrammetric
+Photogrammetry
+php
+phylo
+pID
+pii
+plotSPC
+plyr
+ppt
+precip
+prepanel
+priori
+Probabalistic
+profileApply
+proj
+PROJ
+projargs
+PSC
+PSCs
+PSCS
+quantized
+Rabenhorst
+Rebecca
+rebuildSPC
+redoximorphic
+Redoximorphic
+reflectance
+Reflectance
+renotation
+rescale
+rescaled
+rgb
+rgeos
+rit
+rmse
+Roecker
+Rossiter
+Rowley
+rrggbb
+rruff
+RRUFF
+RStudio
+rubification
+Rubification
+rv
+Sadler
+sameDepth
+saprolite
+Schaap
+Schriften
+Schwertmann
+sciencedirect
+Scopus
+sd
+SDA
+seg
+Serpentinite
+Serpentinitic
+sharpshootR
+sil
+SIL
+siteNames
+Skovlin
+sl
+SL
+slicedHSD
+sliceHSD
+soilColorIndices
+soilDB
+soilProfileCollection
+SoilProfileCollection
+SoilProfileCollections
+SoilProfiles
+soilReports
+SoilWeb
+Southard
+sp
+SpatialPoints
+SpatialPointsDataFrame
+spc
+SPC
+SPCs
+SpectralReflectancesOf
+spectrophotometer
+splined
+splitProfiles
+sRGB
+ssc
+SSSA
+sssaj
+Stiftung
+Stoorvogel
+stringsAsFactors
+subalpine
+subhorizons
+subtractive
+tauW
+taxonname
+tbl
+texcl
+texmod
+Thierry
+tonalite
+towgs
+TukeyHSD
+twotheta
+ucdavis
+Umbric
+uncoated
+usda
+USDA
+USGS
+Uwe
+validSpatialData
+validSpatialPoints
+vectorized
+VEOIIS
+Verrecchia
+VFS
+VOFEIT
+VWC
+Wegener
+Westin
+WGS
+wikipedia
+wtd
+WVC
+www
+XRD
+XYZ
+Yuba
+Zelazny
+Zeng
+Zhang
diff --git a/misc/spellcheck.R b/misc/spellcheck.R
new file mode 100644
index 000000000..d3ad1006b
--- /dev/null
+++ b/misc/spellcheck.R
@@ -0,0 +1,17 @@
+#
+# check spelling, after ignoring a set of package-specific allowed words
+# 
+# install.packages("spelling")
+
+do_spellcheck <- function() {
+  allowed.words <- read.csv("misc/aqp-spellcheck-allowed.csv")$x
+  res <- spelling::spell_check_package()
+  idx <- which(!res[,1] %in% allowed.words)
+  if (length(idx) == 0) {
+    message("No spelling errors found.")
+    return(data.frame())
+  }
+  return(res[idx,])
+}
+
+do_spellcheck()