486 Miscellaneous. 



in October (pp. 115, 116), and then makes a trip up the Moondah 

 River in November. And so ends 1856. 



2. Then, remaining on the coast for some months, he sets out on 

 a journey into the interior (p. 149) on the 23rd. This, we find at 

 p. 164, must have been May 23, 1857. At p. 166, we find June 1. 

 So that we have reached June 1857- This journey ends (pp. 177, 

 178) on the 27th. And at p. 185 we learn that M. Du Chaillu now 

 "remained several months near the Gaboon." And so ends 1857. 



3. On Feb. 5 or 10 he begins a new journey (p. 188) ; so that we 

 have reached Feb. 1858. At p. 197 we reach April 13 ; at p. 204, 

 April 20 ; at p. 205, May 4 ; at p. 218, May 27. Then June 10, 

 Aug. 1, Aug. 13, Sept. 9, Nov. 10, and at p. 244, Nov. 30. So that 

 1858 is well accounted for. 



4. But, strange to say, in chap. xv. we begin 1858 all over again, 

 with a new story, quite incompatible with the first. At p. 247 we 

 find the date of Jan. ] 858, and at p. 248 we are told that on Feb. 26 

 M. Du Chaillu set out for Goombe, whence he proceeded to Obindji, 

 and there we find him in March and April 1858. Yet, fifty pages 

 before (pp. 190-195), we found him residing on the coast all March 

 and April 1858, distant 100 or 150 miles from Obindji. These two 

 accounts are wholly irreconcileable. I felt a doubt, at first, whether 

 the 1858 of pp. 190-195 ought to be read 1857; but this cannot 

 be, for in March and April 1857 M. Du Chaillu is among the She- 

 kianis, in quite another part of the country (pp. 144-153). This 

 second story, however, which begins at p. 248, proceeds regularly 

 enough, all through April, May, June, and July of 1858, until, at 

 p. 310, we reach Aug. 13. 



5. Then we come to a fresh narrative, which, at p. 392, begins 

 with Oct. 10, 1859. This, however, clearly should be Oct. 10, 1858. 

 But the double duty put upon this year, 1858, quite passes my 

 comprehension. The narratives of pp. 188-244 and pp. 248-310 

 are clearly incompatible. — R. B. S. 



On the Anatomy of the Sipunculi. 

 By MM. Keferstein and Ehlers. 

 The authors have investigated the Sipuncidus nudus and S. tessel- 

 latus at Naples. The most striking part of their observations is that 

 relating to the generative organs. The Sipunculi, according to them, 

 are hermaphrodites. The testicles are two long tubular glands which 

 open outwards close to the anus. The ova are formed in caeca situated 

 in the thickness of the skin, and ciliated internally. When the ova 

 have attained a certain size, they pass through the interstices of the 

 muscular tissue and fall into the liquid of the perivisceral cavity, in the 

 midst of which they acquire their final development ; they are then ex- 

 cluded through a pore situated at the posterior extremity of the animal. 

 These statements are evidently in opposition to those of Krohn, who 

 found distinct sexes both in the Sipunculi and the Phascolosomata. 



The authors further differ from Krohn in that they have found no 

 trace of vessels in Sipunctdus nudus. Krohn describes the ventral 

 nervous cord as completely surrounded by a vessel. MM. Ehlers 

 and Keferstein regard this supposed vessel as an exteriial layer of the 



