222 



commonest thing in the world to find the styloid of the hand present 

 in more than one place. 



Pfitzner mentioned that the question had been raised whether 

 the secondary cuboid and the secondary calcaneus might not be one 

 and the same thing. He answered very emphatically in the negative, 

 because the former is situated more in the sole and toward the tibia, 

 and the latter more in the dorsum and toward the fibula. Nevertheless, 

 although one of these bones is plantar and th6 other dorsal, it is to 

 be noted that both of these bones are situated between the same 

 constant elements of the foot; and further, that an uncommonly large 

 secondary calcaneus may extend from the dorsal very nearly to the 

 plantar aspect. 



In this connection, I shall now describe very briefly an uncom- 

 monly good specimen of a secondary calcaneus from the left foot of 

 a black male aet. 23, which also was observed in the past winter 

 (Fig. 3). It presents a small irregular surface on the dorsum at the 

 junction of the calcaneus and cuboid, and extends obliquely downward 

 and inward to within about 5 mm of the plantar aspect, forming the 

 anterior part of the sustentaculum. The lower point ends upon the 

 process of the cuboid which must pass for the cuboides secundarium. 

 The greatest length is 17 mm, equalling that of Gruber's (3) specimen, 

 which I believe is the largest hitherto recorded. The surface for the 

 talus is of course articular, as is also that against the cuboid. The 

 third surface between them is for coalescence with the calcaneus. 

 I have had it drawn so as to show its relation to the cuboid rather 

 than to the calcaneus, so that it may more easily be compared with 

 the cuboides secundarium. 



To return to the question of the possible identity of the cuboides 

 secundarium and the calcaneus secundarius, I must own that it does 

 not seem to me impossible. We should describe either of these bones 

 as situated at the interval between talus, navicular, calcaneus, and 

 cuboides; adding that the cuboides secundarium is plantar and the 

 calcaneus secundarius dorsal; to which we might add if we wanted, 

 though I hardly think it worth while, that the former is more to the 

 tibial side and the latter more to the fibular. In cases of connection, 

 either by bone or cartilage, of the calcaneus and navicular it is as- 

 sumed, according to Pfitzner, that the calcaneus secundarius as a 

 part of the calcaneus fuses with the navicular; that the secondary 

 cuboid, as a part of the navicular, fuses with the calcaneus; and 

 moreover that the two secondary bones fuse one with another. In this. 



