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AT MEETING OF VETERINARY INSPEC" TORS OF THE BurREAU OF ANIMAL IN-

DUSTRY AT CHiIcaGco, May, 1909.

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UNITED STATES DEPARTMENT OF AGRICULTURE, BUREAU OF ANIMAL INDUSTRY, WASHINGTON, D. C,

June 28, 1909.

DISPOSITION OF TUBERCULOUS CARCASSES.

During the recent meeting in Chicago of the veterinary inspectors in charge of the various meat-inspection stations in the United States the following-men- tioned hog and cattle carcasses affected with tuberculosis were retained for the purpose of demonstrating the extent and character of the lesions which would permit be the disposition of these carcasses for food, lard, tallow, or offal, in accordance with the present rules and regulations governing meat inspection, In making these dispositions the chief intention was to give an appropriate inter- pretation of the present post-mortem regulations in order that greater uniforn- ity would obtain in the various meat-inspection centers upon this most important disease of food-producing animals.

For Se a purposes it was assumed that the live weight of sach of

the hogs in question was 250 pounds.

HOG NO. 27.

Cervical glands..................9Light and caloified, BPONGMLAL GLANS foe ss de ewe eue os Do.

Gastro-hepatic glands .........,Well marked and calcified. Mesenteric glands...............Slight and calcified.

Disposition: Food.

Remarks: This carcass would still be passed for food in case liver foci (not exceeding 12 in number) were present, with either the anterior node of the sublumbar gland or the prescapular gland involved.

HOG NO. 23. Cervical glands..................unlarged and calcified. BrONentAe SLANGS < iecdescucsaees Slightly enlarged and calcified. Portal glands .................+-. Normal sizes lesions slight and calcified, Mesenteric glands................5llght and calcified,

Disposition: Food.

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Page 2

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COW NO. 34. Bromonlead Glande vicki ces ce ces .Slight and caseo-calcareous. Mediastinal glands .............. Do. POS ie cies cineca erased e mca eunsaterevace.\s\iste, 6 Several small nodules, size of walnut,

in each lung, Mesenteric glands ..............Slight and caseous.

Disposition: Food.

HOG NO, 24. Cervical glands,....... Oe COn a Somewhat enlarged; arbor vita appearance. Bronchial glands ......... ......-oLightly enlarged and calcified.

Portal glands ....................somewhat enlarged, with well-marked cal- cified lesions,

Mesenteric glands ...............uxtensive, all caloified.

SD OGE ls cite tie gana ele ee cee eelaree wad mare Well marked, calcified.

Disposition: Lard. Remarks: The spleen can not be considered as a seat of primary infection,

and therefore the carcass should not be passed for food. If instead similar lesions in the liver or other primary seat of infection were present, the carcass would be a food carcass.

HOG NO. 22. Cervical glands........ + seeeeee ENlarged and ceseo-calcareous. Bronchial glands ...............9Light and calcified. RES GEES RO ERTUCUGS ai) 91 vat al aval ehdi'vist vial die relents Enlarged, well marked and caseo-calcareous. DVO L cs ge deacessaces ev tencarssoneshDOUL 20 Wollenarked nodules. Mesenteric glands...... aids Ave eee Slight and calcified.

Disposition: Lard,

Remarks: This carcass is on the border line between a food and lard carcass,

with the number of liver nodules deciding its disposition for lard, If there were but several (not more than 12) liver foci present, the carcass could be passed for food in accordance with the regulations,

HOG NO. 18.

Cervical glands..............-..-Well marked and caseo~-calcareous,. Bronohial glands ...............,.9Light and calcified, MGVETU EAS Hebi cis era, cia veretaie:@ #: ala wig, oie 4. -e three or four shot-like nodules,

OPEN SPE LAMIGS: 5. 010 + 0.410 46 sie bare.e-08 die Fairly well marked and calcified. PAVOL ssid nce MedceaamevorsncsicchaWeLve TOOL, Mesenteric glands .....cacservece Slight and calcified,

FTG SSO LINE 5 O46, 6 ass siagieelagucles hes Mesenteric emphysema.

Disposition: Lard.

Remarks: Without the infection of the lungs this carcass could be passed for food,

HOG NO. 17.

Cervical glands...........65-...es5Light, calcified, and abscessed. Bronte PLANOS)...a0scunerecseeeeens and. caloified,

PUTA RIIEES chy rea riser eiace ei ela’ aus aval wravacnealele compos Twelve or more shot-like nodules, Portas PLANES 66.50 , ttt itunreetarrly WeLl marked and caleifiedi GL anih caktasivihseeha nee eiedsseer DOL te FOOL,

SRIVOOM: devevsics aaidsiedsecsecsseeeve One nodule,

Disposition: Lard.

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Page 3

HOG NO. 15. ROVVECRL -PUBMGS <. se auks Gaede cciea Arbor vits appearance. Bronchial glands ......,..........Well marked and caseo-calcareous, AY) ood) ne 1 AE BORO See A number of shot-like nodules, but not uniformly distributed throughout lungs. OPE GORAMOS cicie es cela ae ens ~oeven@S8 than 12 fool, EPPO CM. Gaaes «nae ai Cicieiete Ss balelaies ae ONG MOOULE\, Disposition: Lard. HOG NO. 7. COPVice) GTONGR: oli as eens cu vaes Well marked and caseo-calcareous, SrOWVEMLAL CVANAS bo scice ccd ovenns Do. Gastro-hepatic glands .......... Do, MNO eiletier aiaias. clare one Gale Kew’ sc diaiw aves Sa Fairly well distributed lesions.

ESP CCOM Ms oh orate cafe varcraie sete\a ois Siaistay sists ese Two well-defined nodules,

Disposition: Lard.

Remarks: The two nodules in the spleen are sufficient to cause this carcass

to be tanked for lard.

HOG NO, &. Cervical elands 5.02.07 a etena eens Calcified. Bronchial a MGelovaielcisverevereeieuste -Do. Lungs.,. Rar niareye eer eptier ..several shot-like nodules. Portal glands . A Re Calcified. Banya Seine wrapenn ee 'erare aici aver aeue amas Terai evmies About 6 nodules, Pa LEU ere iene, gic eter nud iete kad ateis: sora cahe es Four small nodules. Mesenteric glands ......ccece0e0s Two lesions, calcified. Disposition: Lard.

HOG NO. 11. Cervical land Giicccs dae asx .....Arbor vite appearance. Bronchial glands ........ Stotevensterars Fairly well marked. LULU Vests eines seo Ra eLeruTans: ahh soe ai pel emea Clues Eleven shot-like nodules in both lungs. Portal glands ....................#airly well marked and caseo-calcareous, Liver.. . Ae ok oaths ned ON few foci, Mesenteric glands serdie\sin winiale sles SDM AiReRL Gg Prescapular glands .........cee0. Caseo-calcareous foci in left gland.

Disposition: Lard.

Remarks: The lesions of the lungs would naturally cause such a carcass to

be tanked for lard. Without lung lesions it could be passed for food, as men- tioned in the remarks under Hog No. 27.

HOG NO. 9. Cervical glands..................<Caseo-calcareous (one gland only). Bronchial glands ..... GAVE a aeE ae .Well marked and caseo-calcareous. MVULYY ERG hyn vermae stars @ soceseceseesess-three local areas inmain lobe, 2 of which

are well marked, a few scattered fooi in periphery of ventral lobe.

Mediastinal glands..... A ae Slight and caseo-calcareous, Portal ee cececcsesssses HRtenSive and caseo-calcareous. Liver... x ee eh ee ng than 12 small nodules. POPS cet wath crenetetees <a ai'vace.alahe Mavaiave, é One nodule.

Mesenteric glands........ SParakonaters Slight and caseo-calcareous.

Disposition: Lard.

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Page 4

HOG NO. 5. Gra Cal EV AME Aa ic walks bce e ve ome .Calcified. BPOMCMVAL BANGER ofc. cd cs cues Do, URES SNS Ren ay ed dae sete esha iyi, ais. 2' 4 a oce ee wun Localized in ventral lobes, slight in

adjoining portion of main lobe. Diaphragmatic pleura.......,....Area corresponding to lung area. POntME PIANOS... caeic crue cess Obes and calcified, Mesenteric glands .......ccesce: : Do.

Disposition: Lard.

HOG NO. 3. BOCVICHL, BLANGS . occ cocw ees on ts ULE, Bronohial glands ..,.............Caséoud, GTA EPER ES aati Se ara eeis eiatate oie o dbvaoe s wo bs A Yew shot-like nodules on right ventral lobe, also on periphery of main lobe. MURUISU ENT tie Memutis cyan ibere ekeee Hace be Katee ee Nodules, fairly well distributed. Gastro-hepatic glands .......... Caseous. EW ue Unrcnce teen we tient eka val deve kcn keke Several well defined nodules. PNR, GRMN Hebets «et alends ids 6 Quiainilela’s Several small areas scattered over right side.

Disposition: Lard.

HOG NO. 21. Cervical glands..................Aroor vite appearance. BVONGH Tay eLEvIGD! cots sene om me se ok A few foci. MUDPIRER eer Pte Neos Gisva este a's: eiaieian Gere A few shot-like nodules. AVG ce Se Se Se SNe cais Nea Sie olsvelevens Fairly well marked with pinhead foci. POE Ee UMNO). . cicloe sc aclsmeie a euie es Enlarged, caseo-fibroid condition. MOSENGETIC PLANS s cic lee te cece as Slight arbor vite formation.

Disposition: Lard.

HOG NO. 1. Gervieel elandsi.ts.0...c<csscs -oadeee and calcified. Bronchial See See sexs ncutanthereie a eee Enlarged and caseo-calcareous. Lungs.. seeeeseees LEW Shot-like nodules in each main lobe. Gastro-hepatie glands katie aterllsier ate Enlarged and caseo-calcareous. Liver.. Sees wstab tee csiac oe onmuod, Lary well digtrabuged, Spleen . igeveeness ss PeOVeral nodules, Prescapular ‘glands .. weeeeee- OLIght and caseo-calcareous.

Disposition: Lard.

HOG NO. 12. Cervical selands ois vs eee »..olight, calcified. Broneniat wllandis \s. 0. 3 sede. s Well marked and caseous,. Mediastinal glands. neailes COSeOUn, TED ERG, ah eh ieactalel oh 6 RE CR few scattered shot-like nodules, Tile rain asus ame eines seins Lar nodules on each side of pleura. Portal glands spar araleseteyetsxosshovetelers eres Enlarged and caseous. Liver.. SAS nee ca ak marked with pinhead foci. Spleen.. ‘ Rintaletecerel sooeeetwO Small foci. Anterior ‘sublumbar gland .. .+..Caseous, Mesentsric Glenda, elk ...olight and caseous. Preseapular Glande... si. seid sass Slight, caseous; both glands,

Disposition: Lard.

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Page 5

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HOG NO. 4. Gervical glands... ....... Statwnnterate’ ¢ .Caseo-calcareous, Bronchial glands ....... oto.tisicic 0 Do. EATER ESS aie dis ever era «ates eres Sicrote crathevoll she vai. acute "A few shot-like nodules. PLEUPS. 6... Ain ARO OOO ORR IOCE Tot Do, EAE « thoracic ‘gland .. Late Hele sae ORLOLE LOG, Portal SC ee Wendel ea pie ches Caseo-calcareous, TELA REE eters NA eR BE CRS no Fairly well marked with pinhead foci. SOMO ck din acho sacs css sceaevrsesOOVOrar NHodules, Splenic gland .... Baa! slat 5 ae Calcified. Ant. Ssuplumbar glands... 6.6.0... Do. Mesenteric glands ...............Many enlarged, caseo-calcareous. Sup. inguinal gland.............slight and caloified. Disposition: Lard. COW NO, 33. Bronohial glands ..<..... Pistoia tse Slight, caseous,. Mediastinal glands........ Res aye Do. PANES. Petae, 9 ae stoi ee a orate eiados ste seoratioisias Two nodules size of walnut in main lobe of right lung. Prescapular Glands secscecccsesas Enlarged,broken down and partially liquefied.

Disposition: Tallow.

Remarks: The character of the lesions and the large amount of tuberculous

pus present prevent the passing of this carcass for food.

STEER NO. 28.

Bronchial glands ...............A few caseous lesions,

Ant. mediastinal glands Aono nas Normal size, small caseous lesions.

HIS adlenlveiecan cose susan ne ceennameLwuteAiLZed nodule in main-Lobe of Left lung.

Portal glands. ceccescveceses DEVEral gmall caseous lesions.

WAC ateieealkia’e weececcceceees HOUY Walnut-sized caseous nodules,

Mesenteric glands secceesececves -DOVEral well marked and caseous lesions.

Disposition: Tallow.

Remarks: The caseous character of the lesions in this carcass causes it

be used for tallow according to the regulations.

COW NO. 29. Bronchial glands .......... .colightly enlarged and caseous. Ant. ea mediastinal glands Slightly enlarged and caseous, REE Rae Srna, 'a Y's, pate. 00 eiaisgua- ers ..Hazelnut-sized nodule in main lobe of right

lung; small nodule inmain lobe of left lung; small nodule in cephalic lobe.

Portal glands wisi csecses Biatarae stexoey Much enlarged and caseous. MUSES tara taraseaiee wa sarelere ex Bhatia aueioaravele 25-30 scattered through substance of liver, Mesenteric glands . Soeeatvenels ston cian sceh cis Two caseous lesions.

Disposition: Tallow.

STEER NO. 30.

Bronchial glands ................9lightly enlarged and caseous. Me gnieiiaiienie BAAN a so ale eielaccie crs Do. WUVIOS canta eievecaves HIS ORATOR TE et ons ciate A nodule the sizes of a hen's egg in main

lobe of left lung; in left cephalic lobe a nodule the size of a walnut,

Portal Glands... las. be. aH Soe aaa Well marked and caseous, Liver... 5 ceceecvesssessst WO Extensive areas, caseous. Mesenteric glands ....... BA ese Two glands show slight caseous lesions.

Disposition: Tallow.

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Page 6

HOG NO. 13. Cervical glands,.................uxtengive, caseous, and liquefying. Bronchial glands ..... Ghavietersvehatvets Slight and calcified. Mediastinal glands .............. Do. AG Mageterrostrdty Flo vic Sac dat Saranattlar waders doa Uniformly distributed shot-like nodules. PESOUTO. ws ccccacvedscsceusccossscscsnMaLt nodules seattered over cach side. TERENGNT® Stata cloka ar vias sPavet Qiayahar sis lsiceaiai aia larenale Miliary foci. Spleen.. VWs stetvessueere marked nodules, Mesenteric “plands Maa os Serene es Slight and caseo-calcareous. Super. inguinal glands.........Glands of both sides fairly well marked

and caseo-calcareous. Disposition: Offal,

Remarks! Generalization of the disease is here evidenced by the uniformly

distributed tubercles in both lungs.

HOG NO. 20. Cervical glands....... dael vaveln sen res Arbor vits appearance. POMC Me pul SEULEPIUED 4 ic. oc: tage ne: suse) Enlarged, hemorrhagic but no visible tuber-

culous lesions.

Bese cease ys atereess ee throughout with shot-like nodules,

aN eave ais, cyaccteitem. @ aveierarsiecevermsaalace . Miliary, PUG Po al'eiar a ayase'aiareie areas nee Pate ese Well marked acute lesions. Portal glands . WOR alent . Hemorrhagic but no visible lesions of tuber-

cle bacilli. <A few nodules on of serous membrane attached to - Disposition: Offal.

HOG NO. 265. Cervical glands..................uxtensive, caseous. BEORGHI OG] B@EANGS ockiece cee tees oe Enlarged and caseous. BEAU Cie aetie tet cau cyatke, cycle Gy anal wyevelcorhaie: aie) aloes Well marked caseous lesions in both lungs. Tirole Vivvews Uugye<d (2% @'(o Ks ip ean era Pane Much enlarged and caseo-calcareous. Pee YY a wile 19 arsles y's Sen Cee didi EE OS BT CYAN cake, alee eho inne) Wen Pherae Ake ue Do. Mesenteric glands i ta Aiea Wa eres ahora laa Slight but affects entire chain. LOS a aripava's aca 2 Rr cue havalcid corevenat aiGuanaiess About a dozen miliary tubercles. BREE Lit ee CELTICS ca ois caiate ava oe 16.0) 6 ete |e gape ave Much enlarged and caseous. Prepectoral glands .....s-0ce00. Hemorrhagic and caseous. ProOruiraielangds...sscewes ocols Well marked and caseous.

Disposition: Offal.

HOG NO. 14. Cerviies!? lands... .scowsssoesnesshegnt and calcified. Bronchial slands c.sciccacescanes Do. Mediastinal eee nicuais ieee Do, Lungs.. ae he SE al tle few scattered shot-like nodules surround- ed by hyperemic zones in both lungs. ME Eas eat hig! iss sie late aria) ave died wersiel aie << Well marked acute lesions on both sides. Prescapular aie On alae tae eueuanece Both slight and calcified, Liver.. AT Re eee ..dairly well marked with miliary foci. Splenic ‘gland . Ee atey aVaRaPay a a.-oh eh Sees ce nay ces ote Slight and calcified. MESENt OTe SVANES yc ccneles canes Do. FO BISON S215 1 ee Do. eerie elaine ss «cis. <r $ aeieesiaes Do. SUSU eR EB a iy co! cia oesereauaiece Do.

Disposition: OPffal.

Remarks: The thoracic lesions are actively progressive, as indicated by the

presence of young tubercles and acute inflammatory zones surrounding them.

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HOG NO. 8, Gervical @lands .6 os jeieccecccs ... oLight and-caseous, BromGnued GLANS . 6. bde wee cece wh Extensive and caseo-calcareous. Lungs.. eaeerer eer ea ee oe weet aees ew aese Do, Pleura . act’ pao ue ee over pleura. Inf, thoracic glands. .. Caseo~calcareous, Portal en ee eer ee ee ere ee Do, Liver.. ae ete co ee Fairly well distributed. Spleen Patent Havens eRe oa eA ame Three well defined nodules, Mesenteric glands ............... Slight and caseo-calcareous. Disposition: Offal.

HOG NO. 26. Cervical glands......... ireurestanera Much enlarged and caseo-calcareous. BeONnChIe. Glands oy ice na abi aereae Do. UMS ewicicaesescsisnsneesnetssce dace ¥VORtral. and cephalic lobes of each lung

solidified; several well marked, acute lesions in main lobes; other Lesions casgeous and quite well distributed,

Gastro-hepatic Dek aieve rata isie paren Very much enlarged and caseo-calcareous. Liver.. eee pinhead nodules. Mesenteric glands . that dees OLE Ce Cand CAaseoun,,

Disposition: Offal.

HOG NO. 10.

CERVEOeL PLANUS. Cacepeme ce cowwe .Extensive, broken down, one liquefying.

Bronchial glands ................uxtensive and calcareo-caseous,

WUE. eet aw le sdsccesccsasecccseuctearey weil distributed throvenout lungs with numerous patches on surfaces which appear acute.

PECUTGM cc cka ce wc ts eecete neaons eres WEL Markee LOBLOne.

Portal glands aicaveldtet rebes co pracusienncone Extensive and calcareo-caseous. Liver.. Bigeebate cara iva Np Wiasacavayeaetacernvacy About a dozen foci.

EGS a ral hlevetele ens wets asia eens A ee Six well defined nodules. Mesenteric glends Onno cao ....One slight caseous lesion.

Disposition: Offal.

HOG NO. 16,

Gerviceal glands.................-Arbor vVits appearance,

Bronchial glands ....... Gece eacereuare Do. TURES... cc bree oacesceccccsssssseasnoveral pronounced acute lesions but not

uniformly distributed.

Tn; GMOPACLO: SION occ. ces .....Caseous,

PINE! Poa ict aca cic wes 08 Sieeaariehe bc PReeee A few slight areas on both sides. Renal gland. seeccebessssaceheDor VitSs appearance.

Prescapular glenda |. oi. » DER One affected, slight.

Portal mee Nate atte ala marae &s Arbor vitw appearance.

Liver.. OG csc ase eaioesascoene Mapked WE mrtiawmy foc,

VED GCM eter Gh the ait a axel odie, e)/lere ei erapeverec dis Enlarged, with well marked nodules, Mesenteric glands J infavae aah eaterah leh ots Slight and caseous.

Super. inguinal glands.........0ne gland, slight and caseous.

Disposition: Offal.

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Page 8

HOG NO. 19. Cervical glands..................Arbor vits appearance. Bronehial BLanNdS: .......%5 wees OLight and caseous. WETS ecra ciae feiss Sao as Pee yi ..Numerous shot-like nodules, but not uni-

formly distributed throughout both lungs. PP SWPS as « Hik«< Stn Sitesi rimey, tuberculous pleurtay. Portal glands . (Museen end OBseoun, Liver.. Be Reh ehh hn ae SHO EL marked lesions. Spleen . Rta Oe cig ouae tices 4% Satan ; Do, Fs GO INEU GT ciara ore berstnareieleimeiiientieleiiasvaaieinadls Slight lesions on external surface. Left sup. inguinal glands...... Fibroid appearance. Disposition: Offal. HOG NO. 6.

Cervical glands..................b0th greatly enlarged, one broken down and liquefying.

Broneniast Plands .o.5).dda.cs oe COROCLELEd:

Mediastinal glands ............6. Do.

MSTARNe Sted Caves ua tet stain ee) fea ak eles ls wn ore.chaly 1k A few shot-like nodules in each lung. Diaphragmatic and costal pleura Slight lesions.

His CMOTACHO BLANC os ts aces ce Caseous.

Prepeetoral: SLANG. Wowie cece ese Hemorrhagic and contains a few acute foci. TU TAMACS eR Ree, res Rn ae IP Oe Miliary foci.

Portal glands ...........ss0..5..,0a5e0-Caloareous,

PEED ore x ee aes wane a atcke'e Sinise val aloie wa de Several acute foci.

PO LOMGO, PLANO asides daissineeclone we QuCbunLed.s

Mesenteric glands ...........000 Extensive calcaréo-cageous lesions in

all these glands. Disposition: Offal.

BULL NO. 3l.

Brome nval WUEMAS) A) vis oa sean Wales Numerous small hazelnut sized casesous lesions. Ant.and post.mediastinal glands Do,

Lungs.. Se eee distributed nodules in both lungs. Portal glands . lLipiseet artes ah acew Casgoous Jeslons,

Gta Ey oftalt Gal ara) sveiaraie ena’h S00 Kilats sie murieets Well marked nodules throughout,

Mesenteric glands ..............Quite extenive, several glands caseo-

calcareous lesions, Prescapular and iliac glands..Hemorrhagic but show no visible foci.

Disposition: Offal. BULL NO. 32. Bronchial, mediastinal, portal,

and mesenteric glands ....Show small pea-sized nodules throughout the chain; caseated,

NATE GEES: Seat a face, Si aera atc eases a dual oahu tia em Extensive in main lobe of right lung, several small nodules in left. DIVG@P ccc ccccccsevnvccscs occerseoes ARbENSIVE area near center with numerous

small nodules throughout the other parts of the organ.

Disposition: Offal.

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Page 9

GENERAL REMARKS.

It will be observed from the foregoing notes that there is a greater varia- tion of lesions between the two extremes representing lard and tallow carcasses than between the extremes in the food and offal classifications. In other words, in the execution of the present regulations it will be found that the broad range permitted in the lard and tallow classification allows a strong contrast between the mildly infected carcasses on the one hand and those which are more markedly infected on the other extreme of this class of carcasses. The extremes in the food classification as well as those in the offal classification are not nearly so pronounced,

It is desired that inspectors in charge shall fully understand the funda- mental principles underlying the above disposition of carcasses; and in case there is a difference of opinion or lack of understanding of the basis upon whic}, any of these dispositions are made, the inspectors are requested to correspond

With this office on the points which are not clear.

Chief of Bureau.

—_— —- ——————

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