EXERCISE LXXXII. BACTERIUM PNEUMONIAE (Weichselbaum) Mig. 
PNEUMOCOCOUS; DIPLOCOCCUS OF PNEUMONIA; MICROCOCCUS LANCEOLATUS. 
First described by Sternberg in 1880. 
in “rusty sputum” of pneumonia. 
REFERENCES. Weichselbaum: Am. Jour. 
& K. 118; M.& R. 204; M. & W. 128; McF. 345; 
Found in saliva and nasal secretion of healthy persons—about 20 per cent. 
Med. Sci., July, 1886: 
P. 498; S. 298. 
MoRPHOLOGICAL CHARACTERS. 
e of 
Cultures: 
Incubation 
temp. (°C.) 
A 
1. Form: 
a. Bouillon 
Ge PING E  OTA6 ais 2 sacral chy seaming Se ph NM. adie jr woaaesatc ora Braud lsaseea abe seomieie "ace Wc ataeio & ant eat ce ens chemwientne evan ae 
By NOCD UPI Ss ay reid oe salen ener 4 Yk EHS AR VE NCEE A Oia Cte ee Ged we wa Aad GUILE AH wow wd 9 DLR ewe nn ad See 
ANIGCATTAMBEIMENUS sup aee fami otic cde ates cigiaa) Wer aceeeattelaniis o 5 tua mee rte San SES AAS HR RNR ae MMe ATG Ge ais MES 
DEAS PRO WILIS) cece 22 cs hese taunt caste an gh DAEs SUAS aE Ey pica ce ete aceel nstycate Rode fe ok peach een cach lay. ee atl bel ac eealee ae oom, ee 
4s. (SCALING POWERS ius ses .acaiavierae:niarsbexie aiterediat ada Ba oy. alee isl avnaamanhouista vo He bdiabe Sea Sn eae Seren Sate erm ars Sa Anemt one acne tae Nila AOE 
Be PGCE SOUT ATEN IGIEL in oxcsic ae vss Sees RRS tHCEAA WI SL eve ORE Cand oe Ao Bi buen Aa Rabas Obs SA Gd Gebapledayshanans cummin 
Bp TO BUEN Te x ca it id ocaaaeeseensag GS bess, uusea.d oo busy 34 bu Sea oa ea eRe Weak de dh Wiener Stree 
6, Gram S(Stai Mss 35 sevesciisna iitaieplaae seat ses Pave aupateher: Sa sheadenni eases 
@. (Specialis tains sccvescmcecwhy ae ceeiasces darsnrmesanekln, oa 
6. Motilityiixnccc ccs csnece 
ia; Character Of MOVEM EN tis cc.sicy gate celirees ee Suds wane wes ue a anise Sameieoeticye us LO Mk UmobaLed wun aie weudedetnlectrcdgy uel oaelante aakomee 
O:-Hlagellarstain,s:s:eenos: Base oumiaederaechiiiae ney sates miawactean Pe Pee eae ee och ancien sare a einen eh onda 
6. Spores Syseteatlepeb/t toe wre. nbese 2 6 aecwits eS ete a sir on Pitea ark Wnfeisiee abe Sie tar ia ta Unease ameN IS Soe te guRE Oru OMe mA atd awe eatod Riera sana ibaa 
Fe SPO) CHAACIGES, BUCH Het < anl'soaeeaeneaion ay ak ayes HON EER TREN Kp Sv anne SAGA4 Ab ddan ba xb wel vaeucanmnnde ke 
COSTES VSCUG OS a caus ya Ke teen Wad Sena SAM alse mma @F ada lod bb Gk ue RU wey Shebunaare ee 
pleomorphic and involution forms, capsules, etc... 2.0... 0.0.0... cee cee 
Usually Present 
Welch: Johns Hop. Hosp. Bulletin, 1892, 8; 125; A. 303. H 278; L 
SKETCHEs, 
PHYSIOLOGICAL CHARACTERS. 
He Relation tortemperatures wise eee ue cepees salary cs Re atid clare had wood alae SedesaMbena meee 
2. Relation to free oxygen: ....... 0... cee cee cece cee cece eee cene vee 
3. Relation;:to -otheragenits,, Such ast ioe ocins aninin vc aaannide neler as Waeaw Weietacaue Le ae phiadanaadermeme a aon ie ge Rigen 
desiccation, light, GISIMLCCLANESHELC the sahsste ote acess AS tet canine noe g sa” of atin ada tea Meyer ae 
4 FipMient Productton Fe see poet acad Nustiecrnn ve 22 ae ates aa Medea Vek Sieet epee naan maak bacterae aecaatentandelee se, NT dive lun Be 
5. Gas production in glucose media: 
G@: SHAKSic itunes eet Seaweed oats cia dea cine. Se gitavlaweantecamane 
6. Fermentation tube, growth in: 
(3) rate of development: 24 hours.......... 
(4) reaction in open arm:.. 
(1) openarm: ............... 
+++... per cent., 48 hours............ per cent., 72 hours 
pace soe 2): Closed varies vse cece uscasau eeee area: 
veoreesee (5) gas formula, H: COo:: 
6. Acid omalkali production Jitmus milky os scGace cess sidiose weg tcaulvoad WO oa rele wtntads cna mere eed ade aeons 
7. Reductioniof nitrates; to; mitrites cc... sa.csceaeeeaian awedan owt ads wiana oa. oe-odlage beehce ie otters 
8. Indol production; 24 hours .......... 0.0. cee cee cece ce ee 
fecal odor; 24 hours 
9. Enzyme production: proteolytic........ 0.6... eee eee eee eee 
dona tiaie yp TAS PILI ater ican Gc la ot eetwavndes 
10; (Characteristic Odor jaisenasnnnensssseeaeiel wt sz aieac enetueok dann smek Menke emamn soy ueuorned ae he ge: 
TT g ~PathO@emesis b cicnivasn as andere sou saina se Samieatie hameodreuior ction elvemnennnenn es Gia & 
Oe renee ins Sara Scent a 
SERRE NEN per cent., ............hours...... 
vevees per cent, 
.., to ammonia clad stats -e) DH FEN GNMaea ona so AE a mnameemaL eee ce cee re 
2 bigaias HAMAS ce v2 ns cag cacavanaeeeien eae 
