The Novi Commentarii was the second journal series of the St. Petersburg Academy, published in 21 volumes between 1747 and 1778. It had its origins in the publication delays from the predecessor journal, the Commentarii. Articles written over the course of the previous six years were bound together into two final volumes (13 and 14), and publication then passed to the Novi Commentarii. Euler published extensively in this journal, authoring 179 articles in total. Full scans of Novi Commentarii volumes can be found at the Biodiversity Heritage Library online.
Predecessor Journal: Commentarii.
Successor Journal: Acta Academiae.
Publications from 1750
E133: De superficie conorum scalenorum aliorumque corporum conicorum
E134: Theoremata circa divisores numerorum
E135: Variae demostrationes geometriae
E136: De propagatione pulsuum per medium elasticum
E137: Examen artificii navis a principio motus interno propellendi
E138: De motu nodorum lunae eiusque inclinationis ad eclipticam variatione
E139: Quantum motus terrae a luna perturbeter accuratius inquiritur
Publications from 1751
E166: De reductione linearum curvarum ad arcus circulares
E167: Solutio problematis difficillimi a Fermatio propositi
Publications from 1753
E188: Methodus aequationes differentiales altiorum graduum integrandi ulterius promota
E189: De serierum determinatione seu nova methodus inveniendi terminos generales serierum
E190: Consideratio quarumdam serierum, quae singularibus proprietatibus sunt praeditae
E191: De partitione numerorum
E192: Solutio problematis geometrici
E193: De perturbatione motus planetarum ab eorum figura non sphaerica oriunda
E194: De machinis in genere
E195: De motu tautochrono pendulorum compositorum
E196: Emendatio laternae magicae ac microscopii solaris
Publications from 1758
E228: De numeris, qui sunt aggregata duorum quadratorum
E229: De constructione aptissima molarum alatarum
E230: Elementa doctrinae solidorum
E231: Demonstratio nonnullarum insignium proprieatatum, quibus solida hedris planis inclusa sunt praedita
E232: De motu corporum coelestium a viribus quibuscunque perturbato
Publications from 1760
E241: Demonstratio theorematis Fermatiani omnem numerum primum formae 4n+1 esse summam duorum quadratorum
E243: Observatio de summis divisorum
E244: Demonstratio theorematis circa ordinem in summis divisorum observatum
E245: De methodo Diophanteae analoga in analysi infinitorum
E246: Subsidium calculi sinuum
E247: De seriebus divergentibus
E248: De cochlea Archimedis
E249: De aptissima figura rotarum dentibus tribuenda
Publications from 1761
E250: Methodus inveniendi infinitas curvas isoperimetras aliave communi proprietate praeditas
E251: De integratione aequationis differentialis (m dx)/√(1–x4) = (n dy)/√(1–y4)
E252: Observationes de comparatione arcuum curvarum irrectificibilium
E253: De problemativus indeterminatis, quae videntur plus quam determinata
E254: De expressione integralium per factores
E256: Specimen de usu observationum in mathesi pura
E257: De frictione corporum rotantium
E258: Principia motus fluidorum
E259: De motu et reactione aquae per tubos mobiles transfluentis
E260: Tentamen theoriae de frictione fluidorum
E262: Theoremata circa residua ex divisione potestatum relicta
E264: Demonstratio theorematis et solutio problematis in actis erud. Lipsiensibus propositorum
E265: De aequationibus differentialibus secundi gradus
Publications from 1763
E269: De integratione aequationum differentialium
E271: Theoremata arithmetica nova methodo demonstrata
E272: Supplementum quorundam theorematum arithmeticorum, quae in nonnullis demonstrationibus supponuntur
E273: Consideratio formularum, quarum integratio per arcus sectionum conicarum absolvi potest
E275: Annotationes in locum quendam Cartesii ad circuli quadraturam spectantem
E276: Dilucidationes de resistentia fluidorum
E277: Principia theoriae machinarum
E278: De motu et attrutu lentium dum super catinis poliuntur
Publications from 1764
E279: De resolutione formularum quadricarum indeterminatarum per numeros integros
E280: De progressionibus arcuum circularium, quorum tangentes secundum certam legem procedunt
E281: Specimen algorithmi singularis
E282: De resolutione aequationum cuiusvis gradus
E283: De numeris primis valde magnis
E284: De resolutione aequationis dy + ayy dx = bxm dx
E285: Investigatio functionum ex data differentialium conditione
E286: De motu vibratorio fili flexilis, corpusculis quotcunque onusti
E287: De motu vibratorio cordarum inaequaliter crassarum
E288: Cogitationes de aggeribus construendis
Publications from 1766
E295: De reductione formularum integralium ad rectificationem ellipsis ac hyperbolae
E296: Elementa calculi variationum
E297: Analytica explicatio methodi maximorum et minimorum
E298: De insigni promotione methodi tangentium inversae
E299: Dilucidationes de tautochronis in medio resistente
E301: De motu corporis ad duo centra virium fixa attracti
E302: De motu vibratorio tympanorum
E303: Tentamen de sono campanarum
E304: Considerationes de motu corporum coelestium
Publications from 1767
E322: De usu functionum discontinuarum in analysi
E323: De usu novi algorithmi in problemate Pelliano solvendo
E324: Proprietates triangulorum, quorum anguli certam inter se tenent rationem
E325: Solutio facilis problematum quorundam geometricorum difficillimorum
E326: Observationes analyticae
E327: De motu rectilineo trium corporum se mutuo attrahentium
E328: De motu corporis ad duo centra virium fixa attracti
E329: De phaenomenis coeli per segmenta sphaerica diaphana spectati
E330: De figura dentium rotarum
E331: De motu fluidorum a diverso caloris gradu oriundo
Publications from 1768
E345: Integratio aequationis dx/√(A+Bx+Cx2+Dx3+Ex4) = dy/√(A+By+Cy2+Dy3+Ey4)
E346: De arcubus curvarum aeque amplis earumque comparatione
E347: Evolutio generalior formularum comparationi curvarum inservientium
E349: Disquisitio de vera lege refrationis radiorum diversicolorum
E350: De novo microscopiorum genere ex sex lentibus composito
E351: De telescopiis quatuor lentibus instructis eorumque perfectione
Publications from 1769
E368: De curva hypergeometrica hac aequatione expressa y = 1.2.3.....x
E369: Quomodo numeri praemagni sint explorandi, utrum sint primi necne
E370: Nova criteria radices aequationum imaginarias discoscendi
E371: Considerationes de theoria motus Lunae perficienda et imprimis de eius variatione