ItwaspracticedbytheBakwainsatatimewhentheyhadnointercourse，directorindirect，withthesouthernmissionariesTheyalladoptreadilytheuseofvaccineviruswhenitisbroughtwithintheirreach。
Acertainloathsomedisease，whichdecimatestheNorthAmericanIndians，andthreatensextirpationtotheSouthSeaIslanders，diesoutintheinteriorofAfricawithouttheaidofmedicine；
andtheBangwaketse，whobroughtitfromthewestcoast，lostitwhentheycameintotheirownlandsouthwestofKolobeng。
ItseemsincapableofpermanenceinanyforminpersonsofpureAfricanbloodanywhereinthecentreofthecountryInpersonsofmixedblooditisotherwise；andthevirulenceofthesecondarysymptomsseemedtobe，inallthecasesthatcameundermycare，inexactproportiontothegreaterorlessamountofEuropeanbloodinthepatient。
AmongtheCorannasandGriquasofmixedbreeditproducesthesameravagesasinEurope；amonghalf-bloodPortugueseitisequallyfrightfulinitsinroadsonthesystem；butinthepureNegroofthecentralpartsitisquiteincapableofpermanenceAmongtheBarotseIfoundadiseasecalledmanassah，whichcloselyresemblesthatofthe`foedamulier’ofhistory。
EquallyunknownisstoneinthebladderandgravelInevermetwithacase，thoughthewatersareoftensostronglyimpregnatedwithsulphateoflimethatkettlesquicklybecomeincrustedinternallywiththesalt；
andsomeofmypatients，whoweretroubledwithindigestion，believedthattheirstomachshadgotintothesameconditionThisfreedomfromcalculiwouldappeartoberemarkableinthenegrorace，evenintheUnitedStates；
forseldomindeedhavethemostfamedlithotomiststhereeveroperatedonanegro。
Thediseasesmostprevalentarethefollowing：pneumonia，producedbysuddenchangesoftemperature，andotherinflammations，asofthebowels，stomach，andpleura；rheumatism；diseaseoftheheart
butthesebecomerareasthepeopleadopttheEuropeandress
variousformsofindigestionandophthalmia；hooping-coughcomesfrequently；
andeveryyeartheperiodprecedingtherainsismarkedbysomesortofepidemicSometimesitisgeneralophthalmia，resemblingcloselytheEgyptianInanotheryearitisakindofdiarrhoea，whichnothingwillcureuntilthereisafallofrain，andanythingactsasacharmafterthatOneyeartheepidemicperiodwasmarkedbyadiseasewhichlookedlikepneumonia，buthadthepeculiarsymptomstronglydevelopedofgreatpainintheseventhcervicalprocess。
Manypersonsdiedofit，afterbeinginacomatosestateformanyhoursordaysbeforetheirdeceaseNoinspectionofthebodybeingeverallowedbythesepeople，andtheplaceofsepulturebeingcarefullyconcealed，Ihadtorestsatisfiedwithconjecture。
FrequentlytheBakwainsburiedtheirdeadinthehutswheretheydied，forfearlestthewitchesBaloishoulddisintertheirfriends，andusesomepartofthebodyintheirfiendisharts。
ScarcelyisthebreathoutofthebodywhentheunfortunatepatientishurriedawaytobeburiedAnant-eater’sholeisoftenselected，inordertosavethetroubleofdiggingagraveOntwooccasionswhileIwastherethishastyburialwasfollowedbythereturnhomeofthemen，whohadbeenburiedalive，totheiraffrightedrelatives。
Theyhadrecovered，whileintheirgraves，fromprolongedswoons。
Inophthalmiathedoctorscuponthetemples，andapplytotheeyesthepungentsmokeofcertainroots，thepatient，atthesametime，takingstrongdraughtsofituphisnostrilsWefoundthesolutionofnitrateofsilver，twoorthreegrainstotheounceofrain-water，answerthesameendsomuchmoreeffectually，thateverymorningnumbersofpatientscrowdedroundourhouseforthecollyrium。
Itisagoodpreventiveofanacuteattackwhenpouredintotheeyesassoonasthepainbegins，andmightprovevaluablefortravelers。
Cuppingisperformedwiththehornofagoatorantelope，havingalittleholepiercedinthesmallendInsomecasesasmallpieceofwaxisattached，andatemporaryholemadethroughittothehornWhentheairiswellwithdrawn，andkeptoutbytouchingtheorifice，ateveryinspiration，withthepointofthetongue，thewaxisatlastpressedtogetherwiththeteeth，andthelittleholeinitclosedup，leavingavacuumwithinthehornforthebloodtoflowfromthealreadyscarifiedparts。
Theedgesofthehornappliedtothesurfacearewetted，andcuppingiswellperformed，thoughthedoctoroccasionally，byseparatingthefibrinefromthebloodinabasinofwaterbyhisside，andexhibitingit，pretendsthathehasextractedsomethingmorethanblood。
Hecanthusexplaintherationaleofthecurebyhisownart，andtheoculardemonstrationgiveniswellappreciated。
Thosedoctorswhohaveinheritedtheirprofessionasanheirloomfromtheirfathersandgrandfathersgenerallypossesssomevaluableknowledge，theresultoflongandcloseobservation；butifamancannotsaythatthemedicalartisinhisfamily，hemaybeconsideredaquack。
WiththeregularpractitionersIalwaysremainedonthebestterms，byrefrainingfromappearingtodoubttheirskillinthepresenceoftheirpatientsAnyexplanationinprivatewasthankfullyreceivedbythem，andwrongtreatmentchangedintosomethingmorereasonablewithcordialgood-will，ifnoonebutthedoctorandmyselfwerepresentattheconversationEnglishmedicineswereeagerlyaskedforandacceptedbyall；andwealwaysfoundmedicalknowledgeanimportantaidinconvincingthepeoplethatwewerereallyanxiousfortheirwelfareWecannotaccusethemofingratitude；
infact，weshallrememberthekindnessoftheBakwainstousaslongaswelive。
Thesurgicalknowledgeofthenativedoctorsisratheratalowebb。
Nooneeverattemptedtoremoveatumorexceptbyexternalapplications。
Thosewithwhichthenativesarechieflytroubledarefattyandfibroustumors；andastheyallhavethe`vismedicatrixnaturae’
inremarkableactivity，Isafelyremovedanimmensenumber。
Inillustrationoftheirwantofsurgicalknowledgemaybementionedthecaseofamanwhohadatumoraslargeasachild’shead。
Thiswassituatedonthenapeofhisneck，andpreventedhiswalkingstraight。
Heappliedtohischief，andhegotsomefamousstrangedoctorfromtheEastCoasttocurehimHeandhisassistantsattemptedtodissolveitbykindlingonitalittlefiremadeofafewsmallpiecesofmedicinalrootsIremoveditforhim，andhealwayswalkedwithhisheadmuchmoreerectthanheneededtodoeverafterwardBothmenandwomensubmittoanoperationwithoutwincing，oranyofthatshoutingwhichcausedyoungstudentstofaintintheoperatingtheatrebeforetheintroductionofchloroform。
ThewomenpridethemselvesontheirabilitytobearpainAmotherwilladdressherlittlegirl，fromwhosefootathornistobeextracted，with，“Now，ma，youareawoman；awomandoesnotcry。”Amanscornstoshedtears。
WhenwewerepassingoneofthedeepwellsintheKalahari，aboy，thesonofanagedfather，hadbeendrownedinitwhileplayingonitsbrinkWhenallhopewasgone，thefatherutteredanexceedinglygreatandbittercryItwassorrowwithouthope。
ThiswastheonlyinstanceIevermetwithofamanweepinginthiscountry。
Theirideasonobstetricsareequallyunscientific，andamedicalmangoingnearawomanatherconfinementappearedtothemmoreoutofplacethanafemalemedicalstudentappearstousinadissecting-room。
Acaseoftwins，however，happening，andtheointmentofallthedoctorsofthetownprovingutterlyinsufficienttoeffectthereliefwhichafewsecondsofEnglishartafforded，theprejudicevanishedatonceAsitwouldhavebeenoutofthequestionformetohaveentereduponthisbranchoftheprofessionasindeeditwouldbeinexpedientforanymedicalmantodevotehimselfexclusively，inathinly-peopledcountry，tothepracticeofmedicine
Ithereafterreservedmyselfforthedifficultcasesonly，andhadthesatisfactionofoftenconferringgreatbenefitsonpoorwomenintheirhourofsorrowThepoorcreaturesareoftenplacedinalittlehutbuiltforthepurpose，andareleftwithoutanyassistancewhatever，andthenumbersofumbilicalherniaewhicharemetwithinconsequenceisverygreatThewomensufferlessattheirconfinementthanisthecaseincivilizedcountries；perhapsfromtheirtreatingit，notasadisease，butasanoperationofnature，requiringnochangeofdietexceptafeastofmeatandabundanceoffreshairThehusbandontheseoccasionsisboundtoslaughterforhisladyanox，orgoat，orsheep，accordingtohismeans。
MyknowledgeintheabovelineprocuredformegreatfameinadepartmentinwhichIcouldlaynoclaimtomerit。
Awomancameadistanceofonehundredmilesforreliefinacomplaintwhichseemedtohavebaffledthenativedoctors；acompletecurewastheresultSometwelvemonthsaftershereturnedtoherhusband，sheboreasonHerhusbandhavingpreviouslyreproachedherforbeingbarren，shesentmeahandsomepresent，andproclaimedalloverthecountrythatIpossessedamedicineforthecureofsterility。
Theconsequencewas，thatIwasteasedwithapplicationsfromhusbandsandwivesfromallpartsofthecountry。
Somecameupwardoftwohundredmilestopurchasethegreatboon，anditwasinvainformetoexplainthatIhadonlycuredthediseaseoftheothercaseThemoreIdenied，thehighertheiroffersrose；theywouldgiveanymoneyforthe“childmedicine“；
anditwasreallyheart-rendingtoheartheearnestentreaty，andseethetearfuleye，whichspoketheintensedesireforoffspring：
“Iamgettingold；youseegrayhairshereandthereonmyhead，andIhavenochild；youknowhowBechuanahusbandscasttheiroldwivesaway；
whatcanIdo？IhavenochildtobringwatertomewhenIamsick。”etc。
ThewholeofthecountryadjacenttotheDesert，fromKurumantoKolobeng，orLitubaruba，andbeyonduptothelatitudeofLakeNgami，isremarkableforitsgreatsalubrityofclimateNotonlythenatives，butEuropeanswhoseconstitutionshavebeenimpairedbyanIndianclimate，findthetractofcountryindicatedbothhealthyandrestorative。
Thehealthandlongevityofthemissionarieshavealwaysbeenfair，thoughmission-workisnotveryconducivetoeitherelsewhereCaseshavebeenknowninwhichpatientshavecomefromthecoastwithcomplaintscloselyresembling，iftheywerenotactually，thoseofconsumption；
andtheyhaverecoveredbytheinfluenceoftheclimatealone。
Itmustalwaysbeborneinmindthattheclimatenearthecoast，fromwhichwereceivedsuchveryfavorablereportsofthehealthoftheBritishtroops，isactuallyinferiorforpersonssufferingfrompulmonarycomplaintstothatofanypartnotsubjectedtotheinfluenceofsea-air。
Ihaveneverseenthebeneficialeffectsoftheinlandclimateonpersonsofshatteredconstitutions，norheardtheirhighpraisesofthebenefittheyhavederivedfromtraveling，withoutwishingthatitsbracingeffectsshouldbecomemoreextensivelyknowninEngland。
NoonewhohasvisitedtheregionIhaveabovementionedfailstorememberwithpleasurethewild，healthfulgipsylifeofwagon-traveling。
Aconsiderableproportionofanimaldietseemsrequisitehere。
Independentofthewantofsalt，werequiredmeatinaslargequantitydailyaswedoinEngland，andnobadeffects，inthewayofbiliousness，followedthefreeuseofflesh，asinotherhotclimates。
Avegetabledietcausesacidityandheartburn。
MrOswellthoughtthisclimatemuchsuperiortothatofPeru，asfaraspleasureisconcerned；thewantofinstrumentsunfortunatelypreventedmyobtainingaccuratescientificdataforthemedicalworldonthissubject；andwereitnotforthegreatexpenseofsuchatrip，IshouldhavenohesitationinrecommendingthebordersoftheKalahariDesertasadmirablysuitedforallpatientshavingpulmonarycomplaints。
Itisthecompleteantipodestoourcold，damp，Englishclimate。
Thewinterisperfectlydry；andasnotadropofrainfallsduringthatperiod，namely，fromthebeginningofMaytotheendofAugust，dampandcoldarenevercombinedHoweverhotthedaymayhavebeenatKolobengandthethermometersometimesrose，previoustoafallofrain，upto96DeginthecoolestpartofourhouseyettheatmosphereneverhasthatsteamyfeelingnorthosedebilitatingeffectssowellknowninIndiaandonthecoastofAfricaitselfIntheeveningstheairbecomesdeliciouslycool，andapleasantrefreshingnightfollowsthehottestdayThegreatestheateverfeltisnotsooppressiveasitiswhenthereismuchhumidityintheair；andthegreatevaporationconsequentonafallofrainmakestherainyseasonthemostagreeablefortraveling。
NothingcanexceedthebalmyfeelingoftheeveningsandmorningsduringthewholeyearYouwishforanincreaseneitherofcoldnorheat；
andyoucansitoutofdoorstillmidnightwithouteverthinkingofcoldsorrheumatism；oryoumaysleepoutatnight，lookinguptothemoontillyoufallasleep，withoutathoughtorsignofmoon-blindness。
Indeed，duringmanymonthsthereisscarcelyanydew。