22 
AYES. 
Introduction are accompanied by a French translation (pp. xxxv- 
Ixix), which of course renders them far more accessible than if 
the original Swedish had alone been given. We need only 
remark of these disquisitions that Prof. Sundevall protests (p. n) 
against the bad but common practice of giving the name of a 
genus, followed by that of its author and date, without any 
indication of the work in which it was bestowed, and also 
(p. xvi) against the common but altogether false belief that 
anatomical or internal characters are always better and surer 
than external characters.^^ Then follows, in Latin, a ^ Methodi 
Avium disponendarum Expositio,^ which, with its addenda^ is 
so masterly handled in a small space (pp. 1-158), that not only 
have we the characters of every group larger than a genus 
explicitly given, but even those of many genera are also indi- 
cated. The arrangement he follows is based on that he pro- 
mulgated in 1835 (Sv. Ak. Handl. pp. 43-130), and still further 
in 1843 {pp. cit. pp. 303-384), and is as follows : — 
Agmen I, PSILOPiEDES sive GYMNOPJEDES (p. 168). 
Ordo I. Oscines. 
Series i. Laminiplantaees. 
Cohors 1. CiCHLOMORPHJE. Pha- Oohors 3. Ooliomorph^. Pha- 
lanx 1. Ocreaice (7 fain.), 
2. Brevipmnes (12 fam.), 
3. ^quiparat^(10iiLxa.), 
4. Brachypodes (8 fam.), 
5. Latirostres (7 fam.), 
* 6. Novempennat<^(6 fam.). 
2. CoNiROSTRES. Phalanx 
1 .Becempennatcs (Siam.) f 
2. AmpUpalataIes(2f am.) j 
3. Arctipalatales (6 fam.), 
4. Simplicii'ostresipfam. ) . 
Series ii. Sctttellivlantaees. 
Cohors 1. Holaspide^ (2 fam.), Cohors 4. PycNASPiDEiE (3 him.). 
2. Enraspide^ (3. fam.). 6. TAXASPiREiu (6 fam.). 
3. Exaspirea} (3 fam.). 
Ordo II. Volucres. 
Series i. Zyqoeactylje. 
Cohors 1. PsiTTACi (6 fam.). Cohors 3. Coccyges (12 fam.). 
2. Pici (6 fam.). 
Series ii. Anisodactyli. 
1 Cohors 4. Cgenomorph^ (4 fam.) Cohors 6. MELLisuGiE { cf . p. 165 ), 
(c/. p. 156). (12 fam.). 
6. Amprigvlares (4 fam.). 7. SYNRACTyRiB (4 fam.). 
8. PehisteroiRe.® (3 f.). 
lanx 1. Novempennat(B 
(3 fam.), 2. Ilumilinares 
(4 fam.), 3. AUinares 
(4 fam.), 4. Idiodactyl<B 
(6 fam.). 
4. CERTHIOMORPHiE (3 f.). 
6. ClNNYRIMORPHiE (5 f.). 
6. CHELIRONOMORPH.®(lf.). 
