IIESPIKATORY ORGANS IN ARANEAR 
95 
lung-bookS; and the histology of the lamellae in Scorpio, aTid 
a new theory of the origin of the lung-books. 
P. J, Mitrofanof (’81) makes some remarks on the lamellte 
in Argyroneta (teste Schimkewitsch ’84, p. 64). 
W. Schimkewitsch (’84) describes the lung-books of E peira, 
without knowledge of MacLeod’s principal paper (’84). 
F. Plateau (’86) searched for respiratory movements in 
living Scorpiones, Araneae, and Opi Hones, with nega- 
tive results. 
W. Wagner (’88) describes the moulting and growth of the 
lung-books in immature spiders. 
L. Berteaus (’89) describes minutely the lung-books of 
spiders and scorpions. This paper is the most complete on 
the histological structure, particularly that of the cuticular 
formations, and various errors made by MacLeod (’84) in this 
respect are corrected. (His description of the form of the 
lung-leaves and the ante-chamber is, however, unsatisfactory, 
and is improved upon by Schneider [’92].) 
J. Tarnani (’89) figures the topography of the two pairs of 
lung-books in Thelyp bonus, and describes the interpul- 
monary folds. In his later work (:04) these lung-books are 
also figured and described (p. 121). 
C. Vogt (’89) gives an original description of the lung-books 
of E peira diadem a. 
A. Schneider (’92) describes the circulation of the blood 
through the lung-books, and gives an account of the general 
structure of these latter organs in spiders. This very excellent 
I>aper is indispensable as a supplement to Berteaux’s important 
histological work. 
M. Laurie gives an account of the structure and histology 
of the lung-books in I^edipalpi (’94)^and of the difference in 
the chitinous armature of the septa in different groups of 
scorpions (’96a, 96b). 
Sophie Pereyaslawzewa (:01) figures some sections of the 
luiig-books of Bhrynidm (figs. 59, 62 and 64), and gives a 
number of descriptive notes, especially on the histology of 
the septa and on the pulmonary muscles (pp. 251-262). 
