been obf: rved heretofore } and chofe like wife, who think that thefe new Obfervations of 
ehe Mufdss are uncertain ; concluding this imbjefi with an Enumeration of the particulars, 
yet remaining to be fearch’d into, in the Hiftory of the Muffles. 
ro all thefe things he adds Two Narratives » One of a differed Head of a Sharpe 
which he calls Canis C archaria 5 where he delivers many curious Observations of the 
Skin, Eye, optick Nerves, Ocular Mufcles, exceeding fmalnefs of the Brain, as alfo 
of the Mouth, and ftrangc Teeth of this- Fifll } examining withal, whether the Gloffo- 
fctra be the Teeth of this Creature, or Sto nes produced by the Earth ; in which contro- 
verfie he takes their part, who maintain that thole and divers other fubftances, found in 
tne Earth, are parts of the Bodies of Animals, and endeavours to prove, that (uch forts of 
Earth may bethefedimentsof water, and fuch Bodies, the parts of Animals carried down 
together with thofe fediments, and in progrefs of time reduced to a ftony hardnefs. * 
* This Subject Mr. Hook hath alfo difcourfed of at large in feveral of his publicfi 
Lectures, founded by Sir John Cutler ; which Lectures he read about Two years 
fince in Grefham Colledge, in the prefence of many Learned and Curious perfons; 
which alfo had been long fince made publicly had not ether indifper. fable affairs 
hindre d him from taking care of the Prejs : where he hath not only Jbewn the 
Origin of thefe Gloflopetrs e,but of all ether cur ioufiy figur’d stones and Minerals , 
together with that of Mountains , Lah.es, Ifiands , &c. though from a fomtwhat dif 
faring Hypothecs of which the curious may. Jbortiy receive a further Account. 
The other Narrative is of a Female Vog- Fifb, differed alio by' himfelf, where de cc° 
eurno lefs remarkable observations, than in the former, both of the parts in the Head, and 
of thofe in the Body ; as touching the fmall weight of the Brain of this Fifh, compared to 
the weight of its Body 5 fevered /i»/e Fijbes found in the Scomach, untouched by any 
Teeth j the Ureters, ths Ovarium, and Oviduftus, where he digreffes, to fhew, Af«- 
lierum tefies effe Ovario amlogos , and 'refers, for further proof of this to his intended 
X^a die, which is to give an account departium Genitalium Jnalogia. 
An Advertifement. 
The Publifher hereof gives notice, that a Brief Index, for the Tranfactions 
of this laftyear, beginning at Numb. 23. in March 1 667. (hall be print- 
ed a part, for the ufe of fuch as defire to have all thofe Numbers to- 
gether. 
ERRATA. ’ 
W Hat the Printer for want of room,did omit hitherto in the giving notice 
of an Error committed by him in Numb. 29. the Reader is now deft - 
red to obferve here, viz. That in the [aid Numb, for want of Marks proper to 
exprefs Multiplication, there was ufed pag. 571.i- 5.7. the marff of plus or 
addition • which yet * tis thought could hardly occafion any miflake in the Intel - 
Ugent Readers , who might eafily fee the meaning of the Author by the lines 8 . 
9. 10. of the next precedent page 570. 
Ia the S A v o r, 
printed by T. N. for John- Martyn, Printer to the Royal Society, and are 
to be fold- at the Belt a little without Temple-Bar, 1(67. 
