16 ACALEPIIS IN GENERAL. Part I. 



with .^cientiPic precision; and their lullower.s, 0. F. Miiller^ and (). Faln'icius," contrib- 

 ute many vahialde ad(htions. Thus far, Avlienever illustrations had lieen added to the 

 descriptions of animals, they were cliiclly wood-euls, or engravings printed in black. 

 But in the year ITTd- O. F. Midler l)egan the puldication of a series of truly mag- 

 nificent colored ])lates, j)ainted and engraved l)y bis brother, which appeared in 

 successive numbers un(k'r the title of Zocilogia Danica. This wovk forms an era in 

 Natural History, and has set an exampk', to Aviiicli we are indebted for all the 

 costly and ever impro\ing colored illustrations ol" this kind during the last eight}' 

 years. To this day the /oblogia Danica is indispensable to tlie student of marine 

 animals. It contains a consideralde numlier oi' good figures of Acalephs, including 

 true Medusa', Beroids, and llydroids. ilenceforwar<I, the number of Meduste known 

 is not only much larger than before, but they arc described with much greater 

 fulness and nicety. At the s;une time, the investigations of Spallan/.ani "' upon the 

 most delicate prolilems in the structure of animals excited univers;il attention by the 

 extraordinary disclosures to which they led. Cook's voyages also stinudated inijuiries 

 into the animals of every [)art (.)f the gloi)e ; and Banks, Solander, and Forster, who 

 had maile the voyage round the world with the great English captain, describe, 

 with the cooiieration of Ellis, the most remarkal)le natural }iroductions l)rouglit home 



' IMl'Li.ER (O. Fit.), Zoulogi;v' l^inicw Pro- drlla Ocuerazione di N<'('(lliam c Biifton, ]\Io<lena, 



Jromus, s(.'U Aniiiialiiim Dania' ct Nurvi;\uia' iiidi- 17(3.'), 4to. Frciicli traiijlatiuii liy IJcgley : Noii- 



genoniin charactered, iiuiiiiiia, etc., Ilafiiia'. 177(1, vcllcs Kcclicrclics siu' Ics Dccoiivcrtcs iiiicro- 



.Svo. — Zoulogia Danica, sen Aninialium Daiiia- ct sco]ii<|iics ct la Generation des Cor[>s nrgaiMx's, 



Nurvc;_ria' i-afiornm Descrijitiones et Ilisforia, Ilai- Londcin et rari>i, 17(j'.l, 2 vols. 8vu. lig. — ■ Lcttei-a 



ni:e et Liii>ia', 177'.I-17S-1, 2 vols. 8vo., and llafiiia'. stilla ]<\^condazione artitizialo, e snll" Elettricita il(dle 



17S8-1S(Mn 1 vols. iol. liL--., with additions hy Abil- Torpcdini : Oimsc. Scclt. 178;i. — I^isullati di Es- 



gaard, llolton, \'ahl, and .1. Iiathl<e. iierienze so])ra la Kiprodnzic>nc dclhi Testa mdh:- 



- Faiuoc'II s (O.), Fanna GroMilandica, .syste- Luniache ten-estri ; jNIom. Soe. Ital. I. ]<. .JSl; II. 

 matie(_' sistcns Animalia Grucnlandiaj oecldcntalis, p. ."idG, ilg. — .So[ira gli' Aniniali delle Int'nsioni, 

 hactenus indagata, Ilafuiffi et Lipsia>, 1780, 8vo. lig. e sui nno\ i rensamcnti, in proposito di Needham ; 

 Tliis work is particnlarly important to the naturalists Giorn. d'ltal. III. — Lettei'a relativa :i <liverse Pro- 

 of New England, as it contains the- first desci-i|itions duzioni niarin<' : Opnse. Si'idt. \TI. — ^ Opnscoli di 

 of man)' marine animals found on our own coasts. Fisica aniniale c vcgatihile, Jlodena, 177G, 2 vols. 



^ Sr.^i.LAXZAXi (Laz.), Prodromo di nn opera 8vo. fig.; Venezia, 1782, 3 vols. 8vo. French 



.sopra Ic l{ii)roduzioni aniinali, Modcn.o, 17(JS, Ito. translation hy Sencljier : Opns<ades de Pliysicpu^ 



French translation hy Bonnet: Programme on animale et vegetale, etc., (ieiieve, 1777 ; Paris, 1787, 



Precis d'uu Ouvrage sur les Reproductions animales, 2 vols. Kvo. English Translation, London, 1784. 



Geneve, 1708, 8vo. English translation: An Essay 2 vols. 8vt). — Dissertazioni di Fisica animale e \i'ge- 



ou Animal Reproductions, etc., London, 17(J9, 8\o. tahile, Jlodena, 178(1, 2 vols. German tran.-lation : 



Latin edition : Prolusio Ojieris de Animalilius mi- Aldiandlungen iiher einige riegenstiimle aus der 



croscopio visihililius, jMutiiKC, 177(.>, 4to. — iSaggio di animalischcn nnd vegetahilisehen Naturkunde, Leip- 



Osservazioni niicroscopicho, concerncnti il .Sistema zig, 1778, 2 vols. 8\o. 



