Fabula Schleicher
Fabula Schleicheriana est narratiuncula, quam Augustus Schleicher anno 1868 eo consilio conscripsit, ut opinabile praeberet specimen linguae protoindoeuropaeae, nempe qualem in formam tunc indicio praesertim linguae Sanscritae methodo comparativa redacta esset. Inscriptio fabulae Avis akvasas ka ('Ovis equique') est. Post mortem Augusti Schleicher eruditi nonnulli, phoneticis et morphologicis recensis rebus linguae Protoindoeuropaeae, saepe hanc fabulam renovatis formis ediderunt.

Textus princeps (Schleicher 1868) Latine redditus 

Avis akvāsas ka
Avis, jasmin varnā na ā ast, dadarka akvams, tam, vāgham garum vaghantam, tam, bhāram magham, tam, manum āku bharantam. Avis akvabhjams ā vavakat: kard aghnutai mai vidanti manum akvams agantam. Akvāsas ā vavakant: krudhi avai, kard aghnutai vividvant-svas: manus patis varnām avisāms karnauti svabhjam gharmam vastram avibhjams ka varnā na asti. Tat kukruvants avis agram ā bhugat.

Ovis equique
 Ovis, cui lana non erat, vidit equos, tum vehiculum grave vehentem, tum onus magnum, tum hominem ociter ferentem. Ovis equis dixit: cor dolet mihi videnti hominem equos agentem. Equi dixerunt: audi, ovis, cor dolet nobis (hoc) videntibus: homo potis lanam ovium facit sibi formam vestem, ovibusque lana non (iam) est. Hoc audito ovis (in) agrum confugit.

Recensiones posteriores

Hirt (1939) 
Owis ek’wōses-kʷe
Owis, jesmin wьlənā ne ēst, dedork’e ek’wons, tom, woghom gʷьrum weghontm̥, tom, bhorom megam, tom, gh’ьmonm̥ ōk’u bherontm̥. Owis ek’womos ewьwekʷet: k’ērd aghnutai moi widontei gh’ьmonm̥ ek’wons ag’ontm̥. Ek’wōses ewьwekʷont: kl’udhi, owei!, k’ērd aghnutai vidontmos: gh’ьmo, potis, wьlənām owjôm kʷr̥neuti sebhoi ghʷermom westrom; owimos-kʷe wьlənā ne esti. Tod k’ek’ruwos owis ag’rom ebhuget.

Lehmann et Zgusta (1979) 
Owis eḱwōskʷe
Gʷərēi owis, kʷesjo wl̥hnā ne ēst, eḱwōns espeḱet, oinom ghe gʷr̥um woǵhom weǵhontm̥, oinomkʷe meǵam bhorom, oinomkʷe ǵhm̥enm̥ ōḱu bherontm̥. Owis nu eḱwobh(j)os (eḱwomos) ewewkʷet: "Ḱēr aghnutoi moi eḱwōns aǵontm̥ nerm̥ widn̥tei". Eḱwōs tu ewewkʷont: "Ḱludhi, owei, ḱēr ghe aghnutoi n̥smei widn̥tbh(j)os (widn̥tmos): nēr, potis, owiōm r̥ wl̥hnām sebhi gʷhermom westrom kʷrn̥euti. Neǵhi owiōm wl̥hnā esti". Tod ḱeḱluwōs owis aǵrom ebhuget.

Adams (1997) 
H2óu̯is h1ék̂u̯ōs-kʷe
[Gʷr̥hxḗi] h2óu̯is, kʷési̯o u̯lh2néh4 ne (h1é) est, h1ék̂u̯ons spék̂et, h1oinom ghe gʷr̥hxúm u̯óĝhom u̯éĝhontm̥ h1oinom-kʷe ĝ méĝham bhórom, h1oinom-kʷe ĝhménm̥ hxṓk̂u bhérontm̥. h2óu̯is tu h1ek̂u̯oibh(i̯)os u̯eukʷét: 'k̂ḗr haeghnutór moi h1ék̂u̯ons haéĝontm̥ hanérm̥ u̯idn̥téi. h1ék̂u̯ōs tu u̯eukʷónt: 'k̂ludhí, h2óu̯ei, k̂ḗr ghe haeghnutór n̥sméi u̯idn̥tbh(i̯)ós. hanḗr, pótis, h2éu̯i̯om r̥ u̯l̥h2néham sebhi kʷr̥néuti nu gʷhérmom u̯éstrom néĝhi h2éu̯i̯om u̯l̥h2néha h1ésti.' Tód k̂ek̂luu̯ṓs h2óu̯is haéĝrom bhugét.

Kortlandt (2007) 
ʕʷeuis ʔkeuskʷe
ʕʷeuis iosmi ʕuelʔn neʔst ʔekuns ʔe 'dērkt, tom 'gʷrʕeum uogom ugentm, tom m'geʕm borom, tom dgmenm ʔoʔku brentm. ʔe uēukʷt ʕʷeuis ʔkumus: kʷntske ʔmoi kērt ʕnerm ui'denti ʔekuns ʕ'gentm. ʔe ueukʷnt ʔkeus: kludi ʕʷuei, kʷntske nsmi kērt ui'dntsu: ʕnēr potis ʕʷuiom ʕulʔenm subi gʷormom uestrom kʷrneuti, ʕʷuimus kʷe ʕuelʔn neʔsti. To'd kekluus ʕʷeuis ʕe'grom ʔe bēu'gd.

Lühr (2008) 
h₂ówis h₁ék’wōskʷe

h₂ówis, (H)jésmin h₂wlh₂néh₂ ne éh₁est, dedork’e (h₁)ék’wons, tóm, wóg’ʰom gʷérh₂um wég’ʰontm, tóm, bʰórom még’oh₂m, tóm, dʰg’ʰémonm h₂oHk’ú bʰérontm. h₂ówis (h₁)ék’wobʰos ewewkʷe(t): k’ḗrd h₂gʰnutoj moj widntéj dʰg’ʰmónm (h₁)ék’wons h₂ég’ontm. (h₁)ék’wōs ewewkʷ: k’ludʰí, h₂ówi! k’ḗrd h₂gʰnutoj widntbʰós: dʰg’ʰémō(n), pótis, h₂wlnéh₂m h₂ówjom kʷnewti sébʰoj gʷʰérmom wéstrom; h₂éwibʰoskʷe h₂wlh₂néh₂ né h₁esti. Tód k’ek’luwṓs h₂ówis h₂ég’rom ebʰuge(t).

 Rex deusque

Notae

Bibliographia 
 Arntz, Helmut (ed.), Hirt, Hermann: Die Hauptprobleme der indogermanischen Sprachwissenschaft. Niemeyer, Halle a.d. Saale 1939 (Sammlung kurzer Grammatiken germanischer Dialekte. B. Ergänzungsheft 4)
 Kortlandt, Frederik. 2007. For Bernard Comrie. 
 Lehmann, W. & Zgusta, L. 1979. Schleicher's tale after a century. Festschrift for Oswald Szemerényi on the Occasion of his 65th Birthday, ed. B. Brogyanyi, 455–66. Amsterdam.
 Lühr, Rosemarie Von Berthold Delbrück bis Ferdinand Sommer: Die Herausbildung der Indogermanistik in Jena
 Mallory, J. P. & Adams, D. Q.: EIEC. London, 1997. S. 500ff.
 Schleicher, August. 1868. Fabel in indogermanischer Ursprache. Beiträge zur vergleichenden Sprachforschung auf dem Gebiete der arischen, celtischen und slawischen Sprachen 5, 206-208.

Nexus externi 
 Grammatica linguae indoeuropaeae nova (continet versiones indoeuropaeam indoiranicamque fabulae Schleicheri)
 rootsweb tree

Textus linguarum reconstructarum
Lingua Protoindoeuropaea